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

Fixes PR11929. Found by valgrind.

llvm-svn: 150943
diff --git a/clang/lib/AST/Expr.cpp b/clang/lib/AST/Expr.cpp
index b3077cb..75c4508 100644
--- a/clang/lib/AST/Expr.cpp
+++ b/clang/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());
   }