[gfortran] Fix excess errors with missing implicit types

[Steven Bosscher]

On Saturday 12 February 2005 16:17, Tobias Schlüter wrote:
> 	* gfortran.h (symbol_attribute): New 'untyped' field, fix comment
> 	formatting.

Can you make it a no_warning field?  It may be useful for other purposes
also.

Gr.
Steven