Propagate the ASTContext to various AST traversal and lookup functions.
No functionality change (really).

llvm-svn: 68726
diff --git a/clang/lib/Sema/SemaInherit.cpp b/clang/lib/Sema/SemaInherit.cpp
index c01430c..8239f54 100644
--- a/clang/lib/Sema/SemaInherit.cpp
+++ b/clang/lib/Sema/SemaInherit.cpp
@@ -179,7 +179,7 @@
       FoundPathToThisBase 
         = (Context.getCanonicalType(BaseSpec->getType()) == Criteria.Base);
     } else {
-      Paths.ScratchPath.Decls = BaseRecord->lookup(Criteria.Name);
+      Paths.ScratchPath.Decls = BaseRecord->lookup(Context, Criteria.Name);
       while (Paths.ScratchPath.Decls.first != Paths.ScratchPath.Decls.second) {
         if (isAcceptableLookupResult(*Paths.ScratchPath.Decls.first,
                                      Criteria.NameKind, Criteria.IDNS)) {