[PGO] Move value profile data definitions out of IndexedInstrProf

Move the data structure defintions out of the namespace. The defs will
be shared by raw format. [NFC]



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253394 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed