[CodegenCleanup] Update cleanup passes according (old) PassManagerBuilder.

Update CodegenCleanup using the function-level passes added by
populatePassManager that run between EP_EarlyAsPossible and
EP_VectorizerStart in -O3.

The changes in particular are:
- Added pass create arguments, e.g. ExpensiveCombines for InstCombine.
- Remove reroll pass. The option -reroll-loops is disabled by default.
- Add passes run with UnitAtATime, which is the default.
- Add instances of LibCallsShrinkWrap, TailCallElimination, SCCP
  (sparse conditional constant propagation), Float2Int
  that did not run before.
- Add instances of GVN as in the default pipeline.

Notes:
- GVNHoist, GVNSink, NewGVN are still disabled in the -O3 pipeline.
- The optimization level and other optimization parameters are not
  accessible outside of PassManagerBuilder, hence we cannot add passes
  depending on these.

Differential Revision: https://reviews.llvm.org/D37571

llvm-svn: 312875

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