PATCH: PR c++/28301: [4.3/4.4/4.5 regression] ICE with broken specialization

[Jason Merrill]

H.J. Lu wrote:
> On Tue, Mar 31, 2009 at 10:36 AM, H.J. Lu <hongjiu.lu@intel.com> wrote:
>> When we see an error, we shouldn't skip to the the end of block or
>> statement if we are already at the end of block or statement.

It seems like the problem is that most places that call 
cp_parser_skip_to_end_of_block_or_statement still want to see the 
closing brace; cp_parser_save_member_function_body is the only 
exception, and in that case we start with an open brace.

Would it work to do

         case CPP_CLOSE_BRACE:
           /* Stop if this is an unnested '}', or closes the outermost 

              nesting level.  */
           nesting_depth--;
+         if (nesting_depth < 0)
+           return;
           if (!nesting_depth)
             nesting_depth = -1;
           break;

so in cases where we see a close brace without an open brace, we return 
without consuming it, but if we did see the open brace, we consume it 
and then return?

Jason