Ignore parentheses when check the type of the expr.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86677 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/CheckSizeofPointer.cpp b/lib/Analysis/CheckSizeofPointer.cpp
index 1aab3c9..174beef 100644
--- a/lib/Analysis/CheckSizeofPointer.cpp
+++ b/lib/Analysis/CheckSizeofPointer.cpp
@@ -54,7 +54,7 @@
     // because people know what they are doing when they intentionally 
     // dereference the pointer.
     Expr *ArgEx = E->getArgumentExpr();
-    if (!isa<DeclRefExpr>(ArgEx))
+    if (!isa<DeclRefExpr>(ArgEx->IgnoreParens()))
       return;
 
     SourceRange R = ArgEx->getSourceRange();