Merging r228957:

------------------------------------------------------------------------
r228957 | bsteinbr | 2015-02-12 13:04:22 -0800 (Thu, 12 Feb 2015) | 14 lines

Fix a crash in the assumption cache when inlining indirect function calls

Summary:
Instances of the AssumptionCache are per function, so we can't re-use
the same AssumptionCache instance when recursing in the CallAnalyzer to
analyze a different function. Instead we have to pass the
AssumptionCacheTracker to the CallAnalyzer so it can get the right
AssumptionCache on demand.

Reviewers: hfinkel

Subscribers: llvm-commits, hans

Differential Revision: http://reviews.llvm.org/D7533
------------------------------------------------------------------------


git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@228965 91177308-0d34-0410-b5e6-96231b3b80d8