Don't return a pointer to an UnresolvedSetImpl in the CXXRecordDecl interface,
expose only the iterators instead.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168770 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaLookup.cpp b/lib/Sema/SemaLookup.cpp
index 003c525..4b1c664 100644
--- a/lib/Sema/SemaLookup.cpp
+++ b/lib/Sema/SemaLookup.cpp
@@ -673,9 +673,8 @@
   if (!Record->isCompleteDefinition())
     return Found;
 
-  const UnresolvedSetImpl *Unresolved = Record->getConversionFunctions();
-  for (UnresolvedSetImpl::iterator U = Unresolved->begin(),
-         UEnd = Unresolved->end(); U != UEnd; ++U) {
+  for (CXXRecordDecl::conversion_iterator U = Record->conversion_begin(),
+         UEnd = Record->conversion_end(); U != UEnd; ++U) {
     FunctionTemplateDecl *ConvTemplate = dyn_cast<FunctionTemplateDecl>(*U);
     if (!ConvTemplate)
       continue;