re PR c++/28861 (ICE on invalid in-class specialization)

        PR c++/28861
        * decl.c (shadow_tag): Return error_mark_node
        if maybe_process_partial_specialization failed.

        * g++.dg/template/spec32.C: New test.
        * g++.dg/parse/crash9.C: Adjust error markers.

From-SVN: r117117

gcc/cp/ChangeLog

+2006-09-21  Lee Millward  <lee.millward@codesourcery.com>
+
+	PR c++/28861
+	* decl.c (shadow_tag): Return error_mark_node
+        if maybe_process_partial_specialization failed.
+	
 2006-09-20  Danny Smith  <dannysmith@users.sourceforge.net>
 
 	PR target/27650

gcc/cp/decl.c

@@ -3745,7 +3745,8 @@ shadow_tag (cp_decl_specifier_seq *declspecs)
 
     }
 
-  maybe_process_partial_specialization (t);
+  if (maybe_process_partial_specialization (t) == error_mark_node)
+    return NULL_TREE;
 
   /* This is where the variables in an anonymous union are
      declared.  An anonymous union declaration looks like:

gcc/testsuite/ChangeLog

+2006-09-21  Lee Millward  <lee.millward@codesourcery.com>
+
+        PR c++/28861
+        * g++.dg/template/spec32.C: New test.
+        * g++.dg/parse/crash9.C: Adjust error markers.
+	
 2006-09-21  Janis Johnson  <janis187@us.ibm.com>
 
 	* gcc.dg/dfp/decfloat-constants.c: Remove 'dg-do compile', fix typo.

gcc/testsuite/g++.dg/parse/crash9.C

@@ -6,4 +6,4 @@
 // contains error.
 
 template <typename> struct A {};
-template <typename> struct A<INVALID> : A<int> { }; // { dg-error "not declared|invalid" }
+template <typename> struct A<INVALID> : A<int> { }; // { dg-error "not declared|invalid|token|extra" }

gcc/testsuite/g++.dg/template/spec32.C

+//PR c++/28861
+
+struct A
+{
+  template<template<int> class B> struct B<0>;  // { dg-error "name of class shadows" }
+};