Fixed scoping error for late parsed attributes in nested classes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154173 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp
index 9216b23..b5ce193 100644
--- a/lib/Parse/ParseDecl.cpp
+++ b/lib/Parse/ParseDecl.cpp
@@ -735,9 +735,18 @@
   ParseScope ClassScope(this, ScopeFlags, !AlreadyHasClassScope);
   ParseScopeFlags ClassScopeFlags(this, ScopeFlags, AlreadyHasClassScope);
 
+  // Enter the scope of nested classes
+  if (!AlreadyHasClassScope)
+    Actions.ActOnStartDelayedMemberDeclarations(getCurScope(),
+                                                Class.TagOrTemplate);
+
   for (unsigned i = 0, ni = Class.LateParsedDeclarations.size(); i < ni; ++i) {
     Class.LateParsedDeclarations[i]->ParseLexedAttributes();
   }
+
+  if (!AlreadyHasClassScope)
+    Actions.ActOnFinishDelayedMemberDeclarations(getCurScope(),
+                                                 Class.TagOrTemplate);
 }
 
 
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index 12b9a63..f54f0fd 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -872,7 +872,13 @@
   if (!FD)
     return;
 
-  PushDeclContext(S, FD);
+  // Same implementation as PushDeclContext, but enters the context
+  // from the lexical parent, rather than the top-level class.
+  assert(CurContext == FD->getLexicalParent() &&
+    "The next DeclContext should be lexically contained in the current one.");
+  CurContext = FD;
+  S->setEntity(CurContext);
+
   for (unsigned P = 0, NumParams = FD->getNumParams(); P < NumParams; ++P) {
     ParmVarDecl *Param = FD->getParamDecl(P);
     // If the parameter has an identifier, then add it to the scope
@@ -884,6 +890,15 @@
 }
 
 
+void Sema::ActOnExitFunctionContext() {
+  // Same implementation as PopDeclContext, but returns to the lexical parent,
+  // rather than the top-level class.
+  assert(CurContext && "DeclContext imbalance!");
+  CurContext = CurContext->getLexicalParent();
+  assert(CurContext && "Popped translation unit!");
+}
+
+
 /// \brief Determine whether we allow overloading of the function
 /// PrevDecl with another declaration.
 ///