Add ParentMap:getParentIgnoreParens().


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71469 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ParentMap.cpp b/lib/AST/ParentMap.cpp
index 939e6f9..9d87daa 100644
--- a/lib/AST/ParentMap.cpp
+++ b/lib/AST/ParentMap.cpp
@@ -46,6 +46,11 @@
   return I == M->end() ? 0 : I->second;
 }
 
+Stmt *ParentMap::getParentIgnoreParens(Stmt *S) const {
+  do { S = getParent(S); } while (S && isa<ParenExpr>(S));
+  return S;
+}
+
 bool ParentMap::isConsumedExpr(Expr* E) const {
   Stmt *P = getParent(E);
   Stmt *DirectChild = E;