Fix glslang can't link multiple AST in a single stage

Fix glslang can't link multiple AST in a single stage

Root cause:
GlslangToSpv use symbol structure's ptr as a map key, but multiple shader object can build a new AST.
In the AST the the same symbol has different ptr point to their structure, so indext map faild.

solution:
Add a new map glslangTypeToIdMap to map ptr to symbol id, and use symbol id to index memberRemapper.