ObjCMessageExpr: Don't leave SelLocsKind uninitialized when the send is implicit.

Fixes PR11929. Found by valgrind.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150943 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index b3077cb..75c4508 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -2979,8 +2979,8 @@
     MyArgs[I] = Args[I];
   }
 
+  SelLocsKind = SelLocsK;
   if (!isImplicit()) {
-    SelLocsKind = SelLocsK;
     if (SelLocsK == SelLoc_NonStandard)
       std::copy(SelLocs.begin(), SelLocs.end(), getStoredSelLocs());
   }