Add missing enum groups
diff --git a/xml/gl.xml b/xml/gl.xml
index caeb2f5..d7507e3 100644
--- a/xml/gl.xml
+++ b/xml/gl.xml
@@ -3546,6 +3546,245 @@
             <enum name="GL_GEOMETRY_INPUT_TYPE" />
             <enum name="GL_GEOMETRY_OUTPUT_TYPE" />
         </group>
+
+        <group name="GlslTypeToken" comment="OpenGL 4.6 Table 7.3: OpenGL Shading Language type tokens">
+            <enum name="GL_FLOAT"/>
+            <enum name="GL_FLOAT_VEC2"/>
+            <enum name="GL_FLOAT_VEC3"/>
+            <enum name="GL_FLOAT_VEC4"/>
+            <enum name="GL_DOUBLE"/>
+            <enum name="GL_DOUBLE_VEC2"/>
+            <enum name="GL_DOUBLE_VEC3"/>
+            <enum name="GL_DOUBLE_VEC4"/>
+            <enum name="GL_INT"/>
+            <enum name="GL_INT_VEC2"/>
+            <enum name="GL_INT_VEC3"/>
+            <enum name="GL_INT_VEC4"/>
+            <enum name="GL_UNSIGNED_INT"/>
+            <enum name="GL_UNSIGNED_INT_VEC2"/>
+            <enum name="GL_UNSIGNED_INT_VEC3"/>
+            <enum name="GL_UNSIGNED_INT_VEC4"/>
+            <enum name="GL_BOOL"/>
+            <enum name="GL_BOOL_VEC2"/>
+            <enum name="GL_BOOL_VEC3"/>
+            <enum name="GL_BOOL_VEC4"/>
+            <enum name="GL_FLOAT_MAT2"/>
+            <enum name="GL_FLOAT_MAT3"/>
+            <enum name="GL_FLOAT_MAT4"/>
+            <enum name="GL_FLOAT_MAT2x3"/>
+            <enum name="GL_FLOAT_MAT2x4"/>
+            <enum name="GL_FLOAT_MAT3x2"/>
+            <enum name="GL_FLOAT_MAT3x4"/>
+            <enum name="GL_FLOAT_MAT4x2"/>
+            <enum name="GL_FLOAT_MAT4x3"/>
+            <enum name="GL_DOUBLE_MAT2"/>
+            <enum name="GL_DOUBLE_MAT3"/>
+            <enum name="GL_DOUBLE_MAT4"/>
+            <enum name="GL_DOUBLE_MAT2x3"/>
+            <enum name="GL_DOUBLE_MAT2x4"/>
+            <enum name="GL_DOUBLE_MAT3x2"/>
+            <enum name="GL_DOUBLE_MAT3x4"/>
+            <enum name="GL_DOUBLE_MAT4x2"/>
+            <enum name="GL_DOUBLE_MAT4x3"/>
+            <enum name="GL_SAMPLER_1D"/>
+            <enum name="GL_SAMPLER_2D"/>
+            <enum name="GL_SAMPLER_3D"/>
+            <enum name="GL_SAMPLER_CUBE"/>
+            <enum name="GL_SAMPLER_1D_SHADOW"/>
+            <enum name="GL_SAMPLER_2D_SHADOW"/>
+            <enum name="GL_SAMPLER_1D_ARRAY"/>
+            <enum name="GL_SAMPLER_2D_ARRAY"/>
+            <enum name="GL_SAMPLER_CUBE_MAP_ARRAY"/>
+            <enum name="GL_SAMPLER_1D_ARRAY_SHADOW"/>
+            <enum name="GL_SAMPLER_2D_ARRAY_SHADOW"/>
+            <enum name="GL_SAMPLER_2D_MULTISAMPLE"/>
+            <enum name="GL_SAMPLER_2D_MULTISAMPLE_ARRAY"/>
+            <enum name="GL_SAMPLER_CUBE_SHADOW"/>
+            <enum name="GL_SAMPLER_CUBE_MAP_ARRAY_SHADOW"/>
+            <enum name="GL_SAMPLER_BUFFER"/>
+            <enum name="GL_SAMPLER_2D_RECT"/>
+            <enum name="GL_SAMPLER_2D_RECT_SHADOW"/>
+            <enum name="GL_INT_SAMPLER_1D"/>
+            <enum name="GL_INT_SAMPLER_2D"/>
+            <enum name="GL_INT_SAMPLER_3D"/>
+            <enum name="GL_INT_SAMPLER_CUBE"/>
+            <enum name="GL_INT_SAMPLER_1D_ARRAY"/>
+            <enum name="GL_INT_SAMPLER_2D_ARRAY"/>
+            <enum name="GL_INT_SAMPLER_CUBE_MAP_ARRAY"/>
+            <enum name="GL_INT_SAMPLER_2D_MULTISAMPLE"/>
+            <enum name="GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY"/>
+            <enum name="GL_INT_SAMPLER_BUFFER"/>
+            <enum name="GL_INT_SAMPLER_2D_RECT"/>
+            <enum name="GL_UNSIGNED_INT_SAMPLER_1D"/>
+            <enum name="GL_UNSIGNED_INT_SAMPLER_2D"/>
+            <enum name="GL_UNSIGNED_INT_SAMPLER_3D"/>
+            <enum name="GL_UNSIGNED_INT_SAMPLER_CUBE"/>
+            <enum name="GL_UNSIGNED_INT_SAMPLER_1D_ARRAY"/>
+            <enum name="GL_UNSIGNED_INT_SAMPLER_2D_ARRAY"/>
+            <enum name="GL_UNSIGNED_INT_SAMPLER_CUBE_MAP_ARRAY"/>
+            <enum name="GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE"/>
+            <enum name="GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY"/>
+            <enum name="GL_UNSIGNED_INT_SAMPLER_BUFFER"/>
+            <enum name="GL_UNSIGNED_INT_SAMPLER_2D_RECT"/>
+            <enum name="GL_IMAGE_1D"/>
+            <enum name="GL_IMAGE_2D"/>
+            <enum name="GL_IMAGE_3D"/>
+            <enum name="GL_IMAGE_2D_RECT"/>
+            <enum name="GL_IMAGE_CUBE"/>
+            <enum name="GL_IMAGE_BUFFER"/>
+            <enum name="GL_IMAGE_1D_ARRAY"/>
+            <enum name="GL_IMAGE_2D_ARRAY"/>
+            <enum name="GL_IMAGE_CUBE_MAP_ARRAY"/>
+            <enum name="GL_IMAGE_2D_MULTISAMPLE"/>
+            <enum name="GL_IMAGE_2D_MULTISAMPLE_ARRAY"/>
+            <enum name="GL_INT_IMAGE_1D"/>
+            <enum name="GL_INT_IMAGE_2D"/>
+            <enum name="GL_INT_IMAGE_3D"/>
+            <enum name="GL_INT_IMAGE_2D_RECT"/>
+            <enum name="GL_INT_IMAGE_CUBE"/>
+            <enum name="GL_INT_IMAGE_BUFFER"/>
+            <enum name="GL_INT_IMAGE_1D_ARRAY"/>
+            <enum name="GL_INT_IMAGE_2D_ARRAY"/>
+            <enum name="GL_INT_IMAGE_CUBE_MAP_ARRAY"/>
+            <enum name="GL_INT_IMAGE_2D_MULTISAMPLE"/>
+            <enum name="GL_INT_IMAGE_2D_MULTISAMPLE_ARRAY"/>
+            <enum name="GL_UNSIGNED_INT_IMAGE_1D"/>
+            <enum name="GL_UNSIGNED_INT_IMAGE_2D"/>
+            <enum name="GL_UNSIGNED_INT_IMAGE_3D"/>
+            <enum name="GL_UNSIGNED_INT_IMAGE_2D_RECT"/>
+            <enum name="GL_UNSIGNED_INT_IMAGE_CUBE"/>
+            <enum name="GL_UNSIGNED_INT_IMAGE_BUFFER"/>
+            <enum name="GL_UNSIGNED_INT_IMAGE_1D_ARRAY"/>
+            <enum name="GL_UNSIGNED_INT_IMAGE_2D_ARRAY"/>
+            <enum name="GL_UNSIGNED_INT_IMAGE_CUBE_MAP_ARRAY"/>
+            <enum name="GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE"/>
+            <enum name="GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE_ARRAY"/>
+            <enum name="GL_UNSIGNED_INT_ATOMIC_COUNTER"/>
+        </group>
+
+        <group name="TransformFeedbackBufferMode" comment="See glTransformFeedbackVaryings()">
+            <enum name="GL_INTERLEAVED_ATTRIBS"/>
+            <enum name="GL_SEPARATE_ATTRIBS"/>
+        </group>
+
+        <group name="VertexAttribType">
+            <enum name="GL_BYTE"/>
+            <enum name="GL_UNSIGNED_BYTE"/>
+            <enum name="GL_SHORT"/>
+            <enum name="GL_UNSIGNED_SHORT"/>
+            <enum name="GL_INT"/>
+            <enum name="GL_UNSIGNED_INT"/>
+            <enum name="GL_FLOAT"/>
+            <enum name="GL_HALF_FLOAT"/>
+            <enum name="GL_DOUBLE"/>
+            <enum name="GL_FIXED"/>
+            <enum name="GL_INT_2_10_10_10_REV"/>
+            <enum name="GL_UNSIGNED_INT_2_10_10_10_REV"/>
+            <enum name="GL_UNSIGNED_INT_10F_11F_11F_REV"/>
+            <enum name="GL_INT_2_10_10_10_REV"/>
+            <enum name="GL_UNSIGNED_INT_2_10_10_10_REV"/>
+            <enum name="GL_UNSIGNED_INT_10F_11F_11F_REV"/>
+        </group>
+
+        <group name="VertexAttribIType">
+            <enum name="GL_BYTE"/>
+            <enum name="GL_UNSIGNED_BYTE"/>
+            <enum name="GL_SHORT"/>
+            <enum name="GL_UNSIGNED_SHORT"/>
+            <enum name="GL_INT"/>
+            <enum name="GL_UNSIGNED_INT"/>
+        </group>
+
+        <group name="VertexAttribLType">
+            <enum name="GL_DOUBLE"/>
+        </group>
+
+        <group name="ProgramResourceProperty">
+            <enum name="GL_ACTIVE_VARIABLES"/>
+            <enum name="GL_BUFFER_BINDING"/>
+            <enum name="GL_NUM_ACTIVE_VARIABLES"/>
+            <enum name="GL_ARRAY_SIZE"/>
+            <enum name="GL_ARRAY_STRIDE"/>
+            <enum name="GL_BLOCK_INDEX"/>
+            <enum name="GL_IS_ROW_MAJOR"/>
+            <enum name="GL_MATRIX_STRIDE"/>
+            <enum name="GL_ATOMIC_COUNTER_BUFFER_INDEX"/>
+            <enum name="GL_BUFFER_DATA_SIZE"/>
+            <enum name="GL_NUM_COMPATIBLE_SUBROUTINES"/>
+            <enum name="GL_COMPATIBLE_SUBROUTINES"/>
+            <enum name="GL_IS_PER_PATCH"/>
+            <enum name="GL_LOCATION"/>
+            <enum name="GL_UNIFORM"/>
+            <enum name="GL_LOCATION_COMPONENT"/>
+            <enum name="GL_LOCATION_INDEX"/>
+            <enum name="GL_NAME_LENGTH"/>
+            <enum name="GL_OFFSET"/>
+            <enum name="GL_REFERENCED_BY_VERTEX_SHADER"/>
+            <enum name="GL_REFERENCED_BY_TESS_CONTROL_SHADER"/>
+            <enum name="GL_REFERENCED_BY_TESS_EVALUATION_SHADER"/>
+            <enum name="GL_REFERENCED_BY_GEOMETRY_SHADER"/>
+            <enum name="GL_REFERENCED_BY_FRAGMENT_SHADER"/>
+            <enum name="GL_REFERENCED_BY_COMPUTE_SHADER"/>
+            <enum name="GL_TRANSFORM_FEEDBACK_BUFFER_INDEX"/>
+            <enum name="GL_TRANSFORM_FEEDBACK_BUFFER_STRIDE"/>
+            <enum name="GL_TOP_LEVEL_ARRAY_SIZE"/>
+            <enum name="GL_TOP_LEVEL_ARRAY_STRIDE"/>
+            <enum name="GL_TYPE"/>
+        </group>
+
+        <group name="BufferPointerNameARB">
+            <enum name="GL_BUFFER_MAP_POINTER"/>
+        </group>
+
+        <group name="VertexAttribPointerPropertyARB">
+            <enum name="GL_VERTEX_ATTRIB_ARRAY_POINTER"/>
+        </group>
+
+        <group name="PointParameterNameARB">
+            <enum name="GL_POINT_FADE_THRESHOLD_SIZE"/>
+        </group>
+
+        <group name="GetMultisamplePNameNV">
+            <enum name="GL_SAMPLE_POSITION"/>
+        </group>
+
+        <group name="ClampColorTargetARB">
+            <enum name="GL_CLAMP_READ_COLOR"/>
+        </group>
+
+        <group name="ClampColorModeARB">
+            <enum name="GL_TRUE"/>
+            <enum name="GL_FALSE"/>
+            <enum name="GL_FIXED_ONLY"/>
+        </group>
+
+        <group name="BufferPNameARB">
+            <enum name="GL_BUFFER_SIZE"/>
+            <enum name="GL_BUFFER_USAGE"/>
+            <enum name="GL_BUFFER_ACCESS"/>
+            <enum name="GL_BUFFER_ACCESS_FLAGS"/>
+            <enum name="GL_BUFFER_IMMUTABLE_STORAGE"/>
+            <enum name="GL_BUFFER_MAPPED"/>
+            <enum name="GL_BUFFER_MAP_OFFSET"/>
+            <enum name="GL_BUFFER_MAP_LENGTH"/>
+            <enum name="GL_BUFFER_STORAGE_FLAGS"/>
+        </group>
+
+        <group name="VertexAttribPropertyARB">
+            <enum name="GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING"/>
+            <enum name="GL_VERTEX_ATTRIB_ARRAY_ENABLED"/>
+            <enum name="GL_VERTEX_ATTRIB_ARRAY_SIZE"/>
+            <enum name="GL_VERTEX_ATTRIB_ARRAY_STRIDE"/>
+            <enum name="GL_VERTEX_ATTRIB_ARRAY_TYPE"/>
+            <enum name="GL_VERTEX_ATTRIB_ARRAY_NORMALIZED"/>
+            <enum name="GL_VERTEX_ATTRIB_ARRAY_INTEGER"/>
+            <enum name="GL_VERTEX_ATTRIB_ARRAY_LONG"/>
+            <enum name="GL_VERTEX_ATTRIB_ARRAY_DIVISOR"/>
+            <enum name="GL_VERTEX_ATTRIB_BINDING"/>
+            <enum name="GL_VERTEX_ATTRIB_RELATIVE_OFFSET"/>
+            <enum name="GL_CURRENT_VERTEX_ATTRIB"/>
+        </group>
+
     </groups>
 
     <!-- SECTION: GL enumerant (token) definitions. -->
@@ -11586,7 +11825,7 @@
         </command>
         <command>
             <proto>void <name>glClearBufferSubData</name></proto>
-            <param><ptype>GLenum</ptype> <name>target</name></param>
+            <param group="BufferTargetARB"><ptype>GLenum</ptype> <name>target</name></param>
             <param group="InternalFormat"><ptype>GLenum</ptype> <name>internalformat</name></param>
             <param group="BufferOffset"><ptype>GLintptr</ptype> <name>offset</name></param>
             <param group="BufferSize"><ptype>GLsizeiptr</ptype> <name>size</name></param>
@@ -14357,19 +14596,19 @@
         <command>
             <proto>void <name>glDrawBuffers</name></proto>
             <param><ptype>GLsizei</ptype> <name>n</name></param>
-            <param group="DrawBufferModeATI" len="n">const <ptype>GLenum</ptype> *<name>bufs</name></param>
+            <param group="DrawBufferMode" len="n">const <ptype>GLenum</ptype> *<name>bufs</name></param>
             <glx type="render" opcode="233"/>
         </command>
         <command>
             <proto>void <name>glDrawBuffersARB</name></proto>
             <param><ptype>GLsizei</ptype> <name>n</name></param>
-            <param group="DrawBufferModeATI" len="n">const <ptype>GLenum</ptype> *<name>bufs</name></param>
+            <param group="DrawBufferMode" len="n">const <ptype>GLenum</ptype> *<name>bufs</name></param>
             <alias name="glDrawBuffers"/>
         </command>
         <command>
             <proto>void <name>glDrawBuffersATI</name></proto>
             <param><ptype>GLsizei</ptype> <name>n</name></param>
-            <param group="DrawBufferModeATI" len="n">const <ptype>GLenum</ptype> *<name>bufs</name></param>
+            <param group="DrawBufferMode" len="n">const <ptype>GLenum</ptype> *<name>bufs</name></param>
             <alias name="glDrawBuffers"/>
             <glx type="render" opcode="233"/>
         </command>
@@ -17562,7 +17801,7 @@
         </command>
         <command>
             <proto>void <name>glGetObjectLabel</name></proto>
-            <param><ptype>GLenum</ptype> <name>identifier</name></param>
+            <param group="ObjectIdentifier"><ptype>GLenum</ptype> <name>identifier</name></param>
             <param><ptype>GLuint</ptype> <name>name</name></param>
             <param><ptype>GLsizei</ptype> <name>bufSize</name></param>
             <param len="1"><ptype>GLsizei</ptype> *<name>length</name></param>
@@ -18074,7 +18313,7 @@
             <param group="ProgramInterface"><ptype>GLenum</ptype> <name>programInterface</name></param>
             <param><ptype>GLuint</ptype> <name>index</name></param>
             <param><ptype>GLsizei</ptype> <name>propCount</name></param>
-            <param len="propCount">const <ptype>GLenum</ptype> *<name>props</name></param>
+            <param group="ProgramResourceProperty" len="propCount">const <ptype>GLenum</ptype> *<name>props</name></param>
             <param><ptype>GLsizei</ptype> <name>bufSize</name></param>
             <param len="1"><ptype>GLsizei</ptype> *<name>length</name></param>
             <param len="bufSize"><ptype>GLint</ptype> *<name>params</name></param>
@@ -18155,7 +18394,7 @@
         </command>
         <command>
             <proto>void <name>glGetQueryIndexediv</name></proto>
-            <param><ptype>GLenum</ptype> <name>target</name></param>
+            <param group="QueryTarget"><ptype>GLenum</ptype> <name>target</name></param>
             <param><ptype>GLuint</ptype> <name>index</name></param>
             <param group="QueryParameterName"><ptype>GLenum</ptype> <name>pname</name></param>
             <param len="COMPSIZE(pname)"><ptype>GLint</ptype> *<name>params</name></param>
@@ -18797,7 +19036,7 @@
             <param><ptype>GLsizei</ptype> <name>bufSize</name></param>
             <param len="1"><ptype>GLsizei</ptype> *<name>length</name></param>
             <param len="1"><ptype>GLsizei</ptype> *<name>size</name></param>
-            <param len="1"><ptype>GLenum</ptype> *<name>type</name></param>
+            <param group="GlslTypeToken" len="1"><ptype>GLenum</ptype> *<name>type</name></param>
             <param len="bufSize"><ptype>GLchar</ptype> *<name>name</name></param>
             <glx type="single" opcode="213"/>
         </command>
@@ -18808,7 +19047,7 @@
             <param><ptype>GLsizei</ptype> <name>bufSize</name></param>
             <param len="1"><ptype>GLsizei</ptype> *<name>length</name></param>
             <param len="1"><ptype>GLsizei</ptype> *<name>size</name></param>
-            <param len="1"><ptype>GLenum</ptype> *<name>type</name></param>
+            <param group="GlslTypeToken" len="1"><ptype>GLenum</ptype> *<name>type</name></param>
             <param len="bufSize"><ptype>GLchar</ptype> *<name>name</name></param>
             <alias name="glGetTransformFeedbackVarying"/>
         </command>
@@ -19864,7 +20103,7 @@
             <proto>void <name>glInvalidateFramebuffer</name></proto>
             <param group="FramebufferTarget"><ptype>GLenum</ptype> <name>target</name></param>
             <param><ptype>GLsizei</ptype> <name>numAttachments</name></param>
-            <param len="numAttachments">const <ptype>GLenum</ptype> *<name>attachments</name></param>
+            <param group="FramebufferAttachment" len="numAttachments">const <ptype>GLenum</ptype> *<name>attachments</name></param>
         </command>
         <command>
             <proto>void <name>glInvalidateNamedFramebufferData</name></proto>
@@ -19884,7 +20123,7 @@
         </command>
         <command>
             <proto>void <name>glInvalidateSubFramebuffer</name></proto>
-            <param><ptype>GLenum</ptype> <name>target</name></param>
+            <param group="FramebufferTarget"><ptype>GLenum</ptype> <name>target</name></param>
             <param><ptype>GLsizei</ptype> <name>numAttachments</name></param>
             <param len="numAttachments" group="FramebufferAttachment">const <ptype>GLenum</ptype> *<name>attachments</name></param>
             <param><ptype>GLint</ptype> <name>x</name></param>
@@ -21257,7 +21496,7 @@
         <command>
             <proto>void <name>glMultiDrawElementsIndirectCount</name></proto>
             <param group="PrimitiveType"><ptype>GLenum</ptype> <name>mode</name></param>
-            <param><ptype>GLenum</ptype> <name>type</name></param>
+            <param group="DrawElementsType"><ptype>GLenum</ptype> <name>type</name></param>
             <param>const void *<name>indirect</name></param>
             <param><ptype>GLintptr</ptype> <name>drawcount</name></param>
             <param><ptype>GLsizei</ptype> <name>maxdrawcount</name></param>
@@ -28610,7 +28849,7 @@
             <param><ptype>GLuint</ptype> <name>program</name></param>
             <param><ptype>GLsizei</ptype> <name>count</name></param>
             <param len="count">const <ptype>GLchar</ptype> *const*<name>varyings</name></param>
-            <param><ptype>GLenum</ptype> <name>bufferMode</name></param>
+            <param group="TransformFeedbackBufferMode" ><ptype>GLenum</ptype> <name>bufferMode</name></param>
             <glx type="render" opcode="359"/>
         </command>
         <command>
@@ -30968,7 +31207,7 @@
             <proto>void <name>glVertexAttribFormat</name></proto>
             <param><ptype>GLuint</ptype> <name>attribindex</name></param>
             <param><ptype>GLint</ptype> <name>size</name></param>
-            <param><ptype>GLenum</ptype> <name>type</name></param>
+            <param group="VertexAttribType"><ptype>GLenum</ptype> <name>type</name></param>
             <param group="Boolean"><ptype>GLboolean</ptype> <name>normalized</name></param>
             <param><ptype>GLuint</ptype> <name>relativeoffset</name></param>
         </command>
@@ -30976,7 +31215,7 @@
             <proto>void <name>glVertexAttribFormatNV</name></proto>
             <param><ptype>GLuint</ptype> <name>index</name></param>
             <param><ptype>GLint</ptype> <name>size</name></param>
-            <param><ptype>GLenum</ptype> <name>type</name></param>
+            <param group="VertexAttribType"><ptype>GLenum</ptype> <name>type</name></param>
             <param group="Boolean"><ptype>GLboolean</ptype> <name>normalized</name></param>
             <param><ptype>GLsizei</ptype> <name>stride</name></param>
         </command>
@@ -31244,14 +31483,14 @@
             <proto>void <name>glVertexAttribIFormat</name></proto>
             <param><ptype>GLuint</ptype> <name>attribindex</name></param>
             <param><ptype>GLint</ptype> <name>size</name></param>
-            <param><ptype>GLenum</ptype> <name>type</name></param>
+            <param group="VertexAttribIType"><ptype>GLenum</ptype> <name>type</name></param>
             <param><ptype>GLuint</ptype> <name>relativeoffset</name></param>
         </command>
         <command>
             <proto>void <name>glVertexAttribIFormatNV</name></proto>
             <param><ptype>GLuint</ptype> <name>index</name></param>
             <param><ptype>GLint</ptype> <name>size</name></param>
-            <param><ptype>GLenum</ptype> <name>type</name></param>
+            <param group="VertexAttribIType"><ptype>GLenum</ptype> <name>type</name></param>
             <param><ptype>GLsizei</ptype> <name>stride</name></param>
         </command>
         <command>