Re: [RFA]: error_silent for use in pending breakpoint support

[Andrew Cagney <cagney@gnu.org>]

> 
> Ok, patch revised.
> 
> I chose to add a new version of catch_exceptions() called catch_exceptions_with_msg() which saves a copy of the error message (if an error occurs) for the caller to manually output if desired.  The copy needs to be freed by the caller once the message is no longer needed.
> 
> I removed error_last_output() and created a new function error_output_message() which takes pre_print text plus a message and outputs to gdb_stderr.
> 
> Any other problems or ok to commit? 

Much nicer - that nasty message buffer is better confied to top.c - 
thank.  Just suggest more commentary here:
> -	  throw_exception (RETURN_ERROR);
> +	  error_silent ("No source file named %s.", copy);
before committing (elena's already oked it from memory).

tks.
Andrew