RFA: Breakpoint infrastructure cleanups [0/8]

[Andrew Cagney]

>> Daniel, did you mention somewhere that the debugger book used "logical" 
>> and "physical" breakpoint?  If it does, it might be better to adopt its 
>> terminology here.
> 
> 
> No, but Joel did.  I'd rather not though; the name doesn't make as much
> sense to me as Jim's suggestion, and I don't think that the one book
> (even if it's close to the only book...) counts as enough of a
> precedent to set terminology.

I know of two books, the other is the GDB internals.

I find "machine" is too vague and non-commital while "physical" strongly 
suggests suggests that it is tangable or concrete.  "user" vs "logical" 
is well, whatever (although "physical" and "logical" tend to go together 
giving a familar paring).

> Jim even kindly gave me three paragraphs of explanatory verbiage
> describing what they are :)

Andrew