Michael Maltese 0c28ff2acc CoreTimingTest: make AdvanceAndCheck() static (fix warning)
Fixes warning:

```
../Source/UnitTests/Core/CoreTimingTest.cpp: In function 'void AdvanceAndCheck(u32, int, int, int)':
../Source/UnitTests/Core/CoreTimingTest.cpp:52:6: error: no previous declaration for 'void AdvanceAndCheck(u32, int, int, int)' [-Werror=missing-declarations]
 void AdvanceAndCheck(u32 idx, int downcount, int expected_lateness = 0, int cpu_downcount = 0)
      ^
```
2017-03-24 21:37:34 -07:00
..
2016-09-03 14:55:44 +10:00