Implement correct name lookup inside an initializer of a C++ class static data member.

Fixes "test/CXX/basic/basic.lookup/basic.lookup.unqual/p13.cpp" test case.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73652 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp
index 9073c6d..efabf3a 100644
--- a/lib/Parse/ParseDecl.cpp
+++ b/lib/Parse/ParseDecl.cpp
@@ -402,7 +402,14 @@
       SourceLocation DelLoc = ConsumeToken();
       Actions.SetDeclDeleted(ThisDecl, DelLoc);
     } else {
+      if (getLang().CPlusPlus)
+        Actions.ActOnCXXEnterDeclInitializer(CurScope, ThisDecl);
+
       OwningExprResult Init(ParseInitializer());
+
+      if (getLang().CPlusPlus)
+        Actions.ActOnCXXExitDeclInitializer(CurScope, ThisDecl);
+
       if (Init.isInvalid()) {
         SkipUntil(tok::semi, true, true);
         return DeclPtrTy();