Fix uninitialized variable warning.

llvm-svn: 147678
diff --git a/clang/lib/Rewrite/RewriteObjC.cpp b/clang/lib/Rewrite/RewriteObjC.cpp
index 5cf1b11..0227b5d 100644
--- a/clang/lib/Rewrite/RewriteObjC.cpp
+++ b/clang/lib/Rewrite/RewriteObjC.cpp
@@ -1288,7 +1288,7 @@
   SmallVector<SourceLocation, 1> SelLocs;
   OldMsg->getSelectorLocs(SelLocs);
 
-  ObjCMessageExpr *NewMsg;
+  ObjCMessageExpr *NewMsg = 0;
   switch (OldMsg->getReceiverKind()) {
   case ObjCMessageExpr::Class:
     NewMsg = ObjCMessageExpr::Create(*Context, OldMsg->getType(),
@@ -1361,7 +1361,7 @@
   SmallVector<SourceLocation, 1> SelLocs;
   SmallVector<Expr*, 1> Args;
 
-  ObjCMessageExpr *NewMsg;
+  ObjCMessageExpr *NewMsg = 0;
   switch (OldMsg->getReceiverKind()) {
   case ObjCMessageExpr::Class:
     NewMsg = ObjCMessageExpr::Create(*Context, OldMsg->getType(),