Directly get the canonical Type instead of going around through a CanQualType temporary, NFC.

llvm-svn: 263635

clang/lib/CodeGen/ItaniumCXXABI.cpp

@@ -2883,7 +2883,7 @@ static llvm::GlobalVariable::LinkageTypes getTypeInfoLinkage(CodeGenModule &CGM,
 
 llvm::Constant *ItaniumRTTIBuilder::BuildTypeInfo(QualType Ty, bool Force) {
   // We want to operate on the canonical type.
-  Ty = CGM.getContext().getCanonicalType(Ty);
+  Ty = Ty.getCanonicalType();
 
   // Check if we've already emitted an RTTI descriptor for this type.
   SmallString<256> Name;