Improved the handling of blocks and block variables in PseudoConstantAnalysis
- Removed the assumption that __block vars are all non-constant
- Simplified some repetitive code in RunAnalysis
- Added block walking support
- Code/comments cleanup
- Separated out test for block pseudoconstants

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112098 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed