WinEH: Make llvm.eh.actions emission match the EH docs

This switches the sense of the i32 values and updates the test cases.

We can also use CHECK-SAME to clean up some tests, and reduce the visual
noise from bitcasts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232774 91177308-0d34-0410-b5e6-96231b3b80d8
11 files changed