Replace a FIXME with a diagnostic when we can't resolve the
nested-name-specifier for a class template declaration. Fixes PR12291.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153006 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaTemplate.cpp b/lib/Sema/SemaTemplate.cpp
index afa6c0e..680e6ea 100644
--- a/lib/Sema/SemaTemplate.cpp
+++ b/lib/Sema/SemaTemplate.cpp
@@ -872,7 +872,8 @@
   if (SS.isNotEmpty() && !SS.isInvalid()) {
     SemanticContext = computeDeclContext(SS, true);
     if (!SemanticContext) {
-      // FIXME: Produce a reasonable diagnostic here
+      Diag(NameLoc, diag::err_template_qualified_declarator_no_match)
+        << SS.getScopeRep() << SS.getRange();
       return true;
     }