Add unittest for 'AR' in 'make_global_settings'

Currently sharing the code among host/NaCl/NDK/Emscripten on top of Ninja+gyp isn't so easy as it should be because not all items in 'make_global_settings' are recognized by Ninja generator (gyp:434).

On the other hand, the current test coverage of 'make_global_settings' isn't so good. Thus this CL describes the current behavior with some unittests before making Ninja generator aware of 'AR' in 'make_global_settings' like Make generator.


Review URL:

git-svn-id: 78cadc50-ecff-11dd-a971-7dbc132099af
2 files changed