Correct data types in the _Unwind_FunctionContext struct

This makes it match the definition used within llvm and in libgcc,
we previously got the wrong layout in 64 bit environments.

Differential Revision: https://reviews.llvm.org/D38247

git-svn-id: https://llvm.org/svn/llvm-project/libunwind/trunk@314196 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed