[WinEH] Refer to filter funclets using their symbol-table symbol

The relocation for the filter funclet will be against a symbol table
entry for a function instead of the section, making it easier to
understand what is going on.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249621 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed