[docs] Restructure description of records created by Statepoints

The previous text was hard to understand even for me and I wrote it.  Hopefully the new structure makes it a bit more clear what's going on.  If anyone has word smithing suggestion or clarification questions, please let me know.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257847 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed