If filtering a lookup result leaves it ambiguous, keep the ambiguity

kind.  Fixes PR7252.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112383 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 1 deletions

diff --git a/lib/Sema/SemaTemplate.cpp b/lib/Sema/SemaTemplate.cpp
index 09656bcd91..2cbf3073a4 100644
--- a/lib/Sema/SemaTemplate.cpp
+++ b/lib/Sema/SemaTemplate.cpp
@@ -141,8 +141,13 @@ TemplateNameKind Sema::isTemplateName(Scope *S,
                  LookupOrdinaryName);
   LookupTemplateName(R, S, SS, ObjectType, EnteringContext,
                      MemberOfUnknownSpecialization);
-  if (R.empty() || R.isAmbiguous()) {
+  if (R.empty()) return TNK_Non_template;
+  if (R.isAmbiguous()) {
+    // Suppress diagnostics;  we'll redo this lookup later.
     R.suppressDiagnostics();
+
+    // FIXME: we might have ambiguous templates, in which case we
+    // should at least parse them properly!
     return TNK_Non_template;
   }