Adds @skipIfPlatform and @skipUnlessPlatform decorators which will skip if /
unless the target platform is in the provided platform list.
Test Plan:
ninja check-lldb shows no regressions.
When running cross platform, tests which cannot run on the target platform are
skipped.
Differential Revision: http://reviews.llvm.org/D8665
llvm-svn: 233547
It also comes with a (rudimentary) test case that gets itself in a failed update scenario, and checks that we don't crash
This is the easiest case I could think of that forces the failed update case Zachary was seeing
llvm-svn: 225463