win: make msvs_shard work properly for static_library references

win: make msvs_shard work properly for static_library references

Before this, dependencies inside a static_library weren't updated to
reference the _N targets, necessitating workarounds like
https://src.chromium.org/viewvc/chrome?revision=254345&view=revision .

The 'refs_to_shard_external_lib' target fails before this change.

R=thakis@chromium.org
BUG=chromium:352495
Committed: https://code.google.com/p/gyp/source/detail?r=1873

[Nico, 2014-03-14 16:48:48]

lgtm

This is enables removing browser_real which is great, but it's not needed for
the  current blink thing, right?

[scottmg, 2014-03-14 17:00:15]

On 2014/03/14 16:48:48, Nico wrote:
> lgtm
> 
> This is enables removing browser_real which is great, but it's not needed for
> the  current blink thing, right?

Right, without this patch it works for targets in the same file (i.e. core.gyp)
and executables in other .gyp files, but not shared_library in the other files.
¯\_(ツ)_/¯

[scottmg, 2014-03-14 17:00:45]

On 2014/03/14 17:00:15, scottmg wrote:
> On 2014/03/14 16:48:48, Nico wrote:
> > lgtm
> > 
> > This is enables removing browser_real which is great, but it's not needed
for
> > the  current blink thing, right?
> 
> Right, without this patch it works for targets in the same file (i.e.
core.gyp)
> and executables in other .gyp files, but not shared_library in the other
files.
> ¯\_(ツ)_/¯

(Mostly I just wanted to confirm the above for blink)

[scottmg, 2014-03-14 17:37:49]

On 2014/03/14 17:00:15, scottmg wrote:
> On 2014/03/14 16:48:48, Nico wrote:
> > lgtm
> > 
> > This is enables removing browser_real which is great, but it's not needed
for
> > the  current blink thing, right?
> 
> Right, without this patch it works for targets in the same file (i.e.
core.gyp)
> and executables in other .gyp files, but not shared_library in the other
files.

"shared_library" should read "static_library" above. (I added a test for
shared_library just to confirm too).

[scottmg, 2014-03-14 17:38:13]

Committed patchset #3 manually as r1873 (presubmit successful).