tests/sksl/runtime_errors/IllegalIndexing.skvm

### Compilation failed:

error: 23: index expression must be constant
void uniform_index()    { int a[2]; a[u] = 0; }
                                    ^^^^
error: 24: index expression must be constant
void param_index(int p) { int a[2]; a[p] = 0; }
                                    ^^^^
2 errors