Integrate [Clang] Fix expansion of response files in -Wp after integrated-cc1 change 68d7f06092e5

[llvmbot]

Bugzilla Link	44633
Resolution	FIXED
Resolved on	Jan 23, 2020 09:21
Version	trunk
OS	Windows NT
Blocks	#43900
Reporter	LLVM Bugzilla Contributor
CC	@zygoloid

Extended Description

Please integrate 68d7f06 into 10.0 branch.

[llvmbot]

assigned to @zmodem

[zmodem]

Cherry-picked to 10.x in 85ee70e