[cfe-dev] adding FileSkipped() to PPCallbacks

[Douglas Gregor]

On Apr 16, 2010, at 11:48 AM, Zhanyong Wan (λx.x x) wrote:
> Per our IRC chat yesterday, I'm extending PPCallbacks with a new
> method FileSkipped() to notify a listener when a #include is skipped
> due to header guard optimization.  Please see the attached patch and
> let me know if this is the right direction.  (I verified that it works
> for my use case.)  Also, how should I add a test for this?

Looks good. I have no idea how to test this, since we don't have any way for preprocessor callbacks to show up in any of Clang's output. It's okay to commit something this small without a test.

	- Doug