With this change, instrumentation code and reader/write
code related to profile data structs are kept strictly
in-sync. THis will be extended to cfe and compile-rt
references as well.
Differential Revision: http://reviews.llvm.org/D13843
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252113 91177308-0d34-0410-b5e6-96231b3b80d8