The future of std.compiler

[Alex Rønne Petersen]

Hi,

I recently sent some pull requests to move std.compiler into 
core.compiler. Sean Kelly raised the issue that druntime is very 
compiler-specific (i.e. GDC and LDC both have their own druntime forks). 
Given this, having it in druntime probably doesn't make a whole lot of 
sense.

So, the question is, does the module serve any purpose in Phobos? The 
documentation on version identifiers was updated recently with version 
identifiers for the various compilers, so detecting different compilers 
is already trivial. Having encapsulation around version identifiers in 
Phobos is arguably rather pointless. On the other hand, the module also 
provides compiler name and version, which I do not believe are defined 
in all compilers (please correct me if I'm wrong!).

What does everyone think? Should we keep this module around or just 
deprecate it?

- Alex