Unifies the name-lookup mechanisms used in various parts of the AST

and separates lexical name lookup from qualified name lookup. In
particular:
  * Make DeclContext the central data structure for storing and
    looking up declarations within existing declarations, e.g., members
    of structs/unions/classes, enumerators in C++0x enums, members of
    C++ namespaces, and (later) members of Objective-C
    interfaces/implementations. DeclContext uses a lazily-constructed
    data structure optimized for fast lookup (array for small contexts,
    hash table for larger contexts). 

  * Implement C++ qualified name lookup in terms of lookup into
    DeclContext.

  * Implement C++ unqualified name lookup in terms of
    qualified+unqualified name lookup (since unqualified lookup is not
    purely lexical in C++!)

  * Limit the use of the chains of declarations stored in
    IdentifierInfo to those names declared lexically.

  * Eliminate CXXFieldDecl, collapsing its behavior into
    FieldDecl. (FieldDecl is now a ScopedDecl).

  * Make RecordDecl into a DeclContext and eliminates its
    Members/NumMembers fields (since one can just iterate through the
    DeclContext to get the fields).



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60878 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 4 deletions

diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index d93bccd2ff..67c60aae07 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -289,10 +289,11 @@ llvm::DIType CGDebugInfo::CreateType(const EnumType *Ty,
   llvm::SmallVector<llvm::DIDescriptor, 32> Enumerators;
 
   // Create DIEnumerator elements for each enumerator.
-  for (EnumConstantDecl *Elt = Decl->getEnumConstantList(); Elt;
-       Elt = dyn_cast_or_null<EnumConstantDecl>(Elt->getNextDeclarator())) {
-    Enumerators.push_back(DebugFactory.CreateEnumerator(Elt->getNameAsString(),
-                                            Elt->getInitVal().getZExtValue()));
+  for (EnumDecl::enumerator_iterator Enum = Decl->enumerator_begin(),
+                                  EnumEnd = Decl->enumerator_end();
+       Enum != EnumEnd; ++Enum) {
+    Enumerators.push_back(DebugFactory.CreateEnumerator(Enum->getNameAsString(),
+                                            Enum->getInitVal().getZExtValue()));
   }
   
   // Return a CompositeType for the enum itself.