From 68c69931412548fa89117e9b12633f84a8e74010 Mon Sep 17 00:00:00 2001
From: Douglas Gregor <dgregor@apple.com>
Date: Tue, 10 Feb 2009 19:52:54 +0000
Subject: [PATCH] Fix a problem with bogus template shadowing warnings

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64230 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Parse/ParseTemplate.cpp      | 9 ++++++---
 test/SemaTemplate/temp_param.cpp | 8 ++++----
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/lib/Parse/ParseTemplate.cpp b/lib/Parse/ParseTemplate.cpp
index d17d244535..742453046b 100644
--- a/lib/Parse/ParseTemplate.cpp
+++ b/lib/Parse/ParseTemplate.cpp
@@ -251,9 +251,12 @@ Parser::ParseTemplateTemplateParameter(unsigned Depth, unsigned Position) {
   SourceLocation TemplateLoc = ConsumeToken();
   TemplateParameterList TemplateParams; 
   SourceLocation LAngleLoc, RAngleLoc;
-  if(!ParseTemplateParameters(Depth + 1, TemplateParams, LAngleLoc,
-                              RAngleLoc)) {
-    return 0;
+  {
+    ParseScope TemplateParmScope(this, Scope::TemplateParamScope);
+    if(!ParseTemplateParameters(Depth + 1, TemplateParams, LAngleLoc,
+                                RAngleLoc)) {
+      return 0;
+    }
   }
 
   // Generate a meaningful error if the user forgot to put class before the
diff --git a/test/SemaTemplate/temp_param.cpp b/test/SemaTemplate/temp_param.cpp
index 249bf9a08d..e45d45629a 100644
--- a/test/SemaTemplate/temp_param.cpp
+++ b/test/SemaTemplate/temp_param.cpp
@@ -39,10 +39,10 @@ template<int N = 5,  // expected-note{{previous default template argument define
          int M>  // expected-error{{template parameter missing a default argument}}
   class B1n;
 
-// FIXME: spurious "shadow" warning!
-//template<template<class T> class = Y1,
-//         template<class T> class>
-//  class B1fixme;
+// Check for bogus template parameter shadow warning.
+template<template<class T> class,
+         template<class T> class>
+  class B1noshadow;
 
 // C++ [temp.param]p10:
 template<class T1, class T2 = int> class B2; 
-- 
2.40.0