DebugInfo: Support (using GNU extensions) for template template parameters and parameter packs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184643 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/IR/DebugInfo.cpp b/lib/IR/DebugInfo.cpp
index 7c23a87..77e29e6 100644
--- a/lib/IR/DebugInfo.cpp
+++ b/lib/IR/DebugInfo.cpp
@@ -292,7 +292,9 @@
 /// isTemplateValueParameter - Return true if the specified tag is
 /// DW_TAG_template_value_parameter.
 bool DIDescriptor::isTemplateValueParameter() const {
-  return DbgNode && getTag() == dwarf::DW_TAG_template_value_parameter;
+  return DbgNode && (getTag() == dwarf::DW_TAG_template_value_parameter ||
+                     getTag() == dwarf::DW_TAG_GNU_template_template_param ||
+                     getTag() == dwarf::DW_TAG_GNU_template_parameter_pack);
 }
 
 /// isCompileUnit - Return true if the specified tag is DW_TAG_compile_unit.