[AMDGPU] Change image desc rsrc character from 'c' to 't'

Author: ranapratap55

clang/include/clang/Basic/Builtins.def

@@ -34,7 +34,7 @@
 //  Q -> target builtin type, followed by a character to distinguish the builtin type
 //    Qa -> AArch64 svcount_t builtin type.
 //    Qb -> AMDGPU __amdgpu_buffer_rsrc_t builtin type.
-//    Qc -> AMDGPU __amdgpu_image_desc_t builtin type.
+//    Qt -> AMDGPU __amdgpu_image_desc_t builtin type.
 //  E -> ext_vector, followed by the number of elements and the base type.
 //  X -> _Complex, followed by the base type.
 //  Y -> ptrdiff_t

clang/lib/AST/ASTContext.cpp

@@ -12580,7 +12580,7 @@ static QualType DecodeTypeFromStr(const char *&Str, const ASTContext &Context,
       Type = Context.AMDGPUBufferRsrcTy;
       break;
     }
-    case 'c': {
+    case 't': {
       Type = Context.AMDGPUImageDescRsrcTy;
       break;
     }