[RFC] Move ``length'' from struct main_type to struct type

[Kevin Buettner]

On Jan 29,  3:48pm, Kevin Buettner wrote:

> 	* gdbtypes.h (struct main_type): Move ``length'' field from here...
> 	(struct type): ...to here.
> 	(TYPE_LENGTH): Adjust to reflect different location of ``length''
> 	field.
> 	* gdbtypes.c (make_qualified_type): Set length on newly created type.
> 	(replace_type): Set length on all type variants for a given type.

Committed.