[TargetLowering] Extend bool args to inline-asm according to getBooleanType

Summary:
This extends Krzysztof Parzyszek's X86-specific solution
(https://reviews.llvm.org/D60208) to the generic code pointed out by
James Y Knight.

Reviewers: kparzysz, craig.topper, nickdesaulniers

Subscribers: efriedma, sdardis, nemanjai, javed.absar, eraman, fedor.sergeev, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, jsji, llvm-commits, srhines, void, nickdesaulniers, jyknight

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D60224

llvm-svn: 361404