Add new convenience pool allocators for arbitrary types, and use them to keep all TSymbol content in the pool, so they don't have to be deleted.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@24148 e7fa87d3-cd2b-0410-9028-fcbf551c1848

glslang/Include/Common.h

@@ -98,6 +98,16 @@ inline TString* NewPoolTString(const char* s)
 	return new(memory) TString(s);
 }
 
+template<class T> inline T* NewPoolObject(T)
+{
+    return new(GetThreadPoolAllocator().allocate(sizeof(T))) T;
+}
+
+template<class T> inline T* NewPoolObject(T, int instances)
+{
+    return new(GetThreadPoolAllocator().allocate(instances * sizeof(T))) T[instances];
+}
+
 //
 // Pool allocator versions of vectors, lists, and maps
 //