Add SDK definitions for upstream wasm backend enabled LLVM, "sdk-wasm-master-32/64bit". (#213)

emsdk_manifest.json

diff --git a/emsdk_manifest.json b/emsdk_manifest.json
index 5747d0f..0a0ff80 100644
--- a/emsdk_manifest.json
+++ b/emsdk_manifest.json
@@ -1080,30 +1080,60 @@
     "os": "win"

   },

   {

+    "version": "wasm-master",

+    "bitness": 32,

+    "uses": ["upstream-clang-master-32bit", "node-8.9.1-32bit", "python-2.7.13.1-32bit", "java-8.152-32bit", "emscripten-incoming-32bit", "binaryen-master-32bit"],

+    "os": "win"

+  },

+  {

     "version": "incoming",

     "bitness": 64,

     "uses": ["clang-incoming-64bit", "node-8.9.1-64bit", "python-2.7.13.1-64bit", "java-8.152-64bit", "emscripten-incoming-64bit", "binaryen-master-64bit"],

     "os": "win"

   },

   {

+    "version": "wasm-master",

+    "bitness": 64,

+    "uses": ["upstream-clang-master-64bit", "node-8.9.1-64bit", "python-2.7.13.1-64bit", "java-8.152-64bit", "emscripten-incoming-64bit", "binaryen-master-64bit"],

+    "os": "win"

+  },

+  {

     "version": "incoming",

     "bitness": 64,

     "uses": ["clang-incoming-64bit", "node-8.9.1-64bit", "emscripten-incoming-64bit", "binaryen-master-64bit"],

     "os": "osx"

   },

   {

+    "version": "wasm-master",

+    "bitness": 64,

+    "uses": ["upstream-clang-master-64bit", "node-8.9.1-64bit", "emscripten-incoming-64bit", "binaryen-master-64bit"],

+    "os": "osx"

+  },

+  {

     "version": "incoming",

     "bitness": 32,

     "uses": ["clang-incoming-32bit", "node-8.9.1-32bit", "emscripten-incoming-32bit", "binaryen-master-32bit"],

     "os": "linux"

   },

   {

+    "version": "wasm-master",

+    "bitness": 32,

+    "uses": ["upstream-clang-master-32bit", "node-8.9.1-32bit", "emscripten-incoming-32bit", "binaryen-master-32bit"],

+    "os": "linux"

+  },

+  {

     "version": "incoming",

     "bitness": 64,

     "uses": ["clang-incoming-64bit", "node-8.9.1-64bit", "emscripten-incoming-64bit", "binaryen-master-64bit"],

     "os": "linux"

   },

   {

+    "version": "wasm-master",

+    "bitness": 64,

+    "uses": ["upstream-clang-master-64bit", "node-8.9.1-64bit", "emscripten-incoming-64bit", "binaryen-master-64bit"],

+    "os": "linux"

+  },

+  {

     "version": "master",

     "bitness": 32,

     "uses": ["clang-master-32bit", "node-4.1.1-32bit", "python-2.7.13.1-32bit", "java-8.152-32bit", "emscripten-master-32bit", "binaryen-master-32bit"],