[clang] Add missing canonicalization in int literal profile (#67822)

The addition of the type kind to the profile ID of IntegerLiterals
results in e.g. size_t and unsigned long literals mismatch even on
platforms where they are canonically the same type. This patch checks
the Canonical field to determine whether to canonicalize the type first.

rdar://116063468

Author: hnrklssn

clang/lib/AST/StmtProfile.cpp

@@ -1335,6 +1335,8 @@ void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
   S->getValue().Profile(ID);
 
   QualType T = S->getType();
+  if (Canonical)
+    T = T.getCanonicalType();
   ID.AddInteger(T->getTypeClass());
   if (auto BitIntT = T->getAs<BitIntType>())
     BitIntT->Profile(ID);