[msan] bool -> int to make msan_interface.h C-compatible.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190402 91177308-0d34-0410-b5e6-96231b3b80d8
[msan] Make all pointers in msan_interface "const volatile void *".

This way msan annotations can be used with both normal and volatile memory.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190403 91177308-0d34-0410-b5e6-96231b3b80d8