remove some unneeded calls to getCanonicalType


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54106 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Driver/RewriteObjC.cpp b/Driver/RewriteObjC.cpp
index 641da18..56f3b3d 100644
--- a/Driver/RewriteObjC.cpp
+++ b/Driver/RewriteObjC.cpp
@@ -1992,10 +1992,9 @@
   FunctionDecl *MsgSendStretFlavor = 0;
   if (ObjCMethodDecl *mDecl = Exp->getMethodDecl()) {
     QualType resultType = mDecl->getResultType();
-    if (resultType.getCanonicalType()->isStructureType() 
-        || resultType.getCanonicalType()->isUnionType())
+    if (resultType->isStructureType() || resultType->isUnionType())
       MsgSendStretFlavor = MsgSendStretFunctionDecl;
-    else if (resultType.getCanonicalType()->isRealFloatingType())
+    else if (resultType->isRealFloatingType())
       MsgSendFlavor = MsgSendFpretFunctionDecl;
   }