Merging r371048:

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r371048 | jonpa | 2019-09-05 12:20:05 +0200 (Thu, 05 Sep 2019) | 7 lines

[SystemZ]  Recognize INLINEASM_BR in backend

Handle the remaining cases also by handling asm goto in
SystemZInstrInfo::getBranchInfo().

Review: Ulrich Weigand
https://reviews.llvm.org/D67151
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llvm-svn: 371057