[SR-1124] Drop FileCheck from test/1_stdlib, use StdlibUnittest instead

Previous ID	SR-1124
Radar	None
Original Reporter	@modocache
Type	Improvement

Votes	0
Component/s	Standard Library
Labels	Improvement, StarterBug, Test
Assignee	None
Priority	Medium

md5: 5245d992633498d3acacd3655548dd7c

Issue Description:

Swift's test/1_stdlib directory is meant to include tests for the Swift stdlib. Most of these are written using the testing framework designed for this purpose, StdlibUnittest. However, some use an ad-hoc system of printing strings to stdout, then checking the output via FileCheck.

The following tests should be written using StdlibUnittest (and no longer reference FileCheck):

1. test/1_stdlib/ArrayBridge.swift

2. test/1_stdlib/BitwiseOperationsType.swift

3. test/1_stdlib/BridgeNonVerbatim.swift

4. test/1_stdlib/Bridgeable.swift

5. test/1_stdlib/CGGeometry.swift

6. test/1_stdlib/Collection.swift

7. test/1_stdlib/CollectionOfOne.swift

8. test/1_stdlib/Float.swift

9. test/1_stdlib/FloatingPointIR.swift

10. test/1_stdlib/HeapBuffer.swift

11. test/1_stdlib/ImplicitlyUnwrappedOptional.swift

12. test/1_stdlib/KVO.swift

13. test/1_stdlib/LogicValue.swift

14. test/1_stdlib/Map.swift

15. test/1_stdlib/NSObject.swift

16. test/1_stdlib/NSUndoManager.swift

17. test/1_stdlib/NewArray.swift.gyb

18. test/1_stdlib/NewString.swift

19. test/1_stdlib/NewStringAppending.swift

20. test/1_stdlib/Nil.swift

21. test/1_stdlib/Reflection.swift

22. test/1_stdlib/Reflection_jit.swift

23. test/1_stdlib/Reflection_objc.swift

24. test/1_stdlib/SegmentAlignment.c

25. test/1_stdlib/SpriteKit.swift

26. test/1_stdlib/StringReallocation.swift

27. test/1_stdlib/TypeName.swift

28. test/1_stdlib/UIKit.swift

29. test/1_stdlib/UIViewControllerAdditions.swift

30. test/1_stdlib/VarArgs.swift

31. test/1_stdlib/Zip.swift

32. test/1_stdlib/alloc_rounding.swift

33. test/1_stdlib/integer_conversions.swift

34. test/1_stdlib/sort_integers.swift

35. test/1_stdlib/subString.swift