Fix Polly

[ScopBuilder] Fix bug 38358 by preserving correct order of ScopStmts.

[Alignment][NFC] Remove dependency on GlobalObject::setAlignment(unsigned)

[Polly] Fix formatting violation. NFC.

[Stats] More polly fixes following llvm::Statistic changes in r374490.

[Stats] Fix polly build due to change in llvm::Statistic constructor in r374490.

[Alignment][NFC] Remove StoreInst::setAlignment(unsigned)

[Alignment][NFC] Remove AllocaInst::setAlignment(unsigned)

[Alignment] Fix polly build

Revert "Update polly test for SCEV change."

[CodeGen] Handle outlining of CopyStmts.

[Polly] Fix lib/Transform/ScheduleOptimizer.cpp compilation on Solaris

[ScopBuilder] Skip getting leader when merging statements to close holes.

[DependenceInfo] Compute WAR dependence info using ISL kills. NFC.

[ScopBuilder] Remove superfluous while loop in buildDomains. NFC.