Unwinding fixes #1069
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Unwinding fixes #1069
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These intefere with the real unwind implementation in `libunwind`. `libunwind` has been added to `cosmopolitan.a` to replace the stubs.
`resumeParameters` in `_Unwind_FunctionContext` should be "unwind words" (typically 64-bit) instead of 32-bit. This fix, along with the pending libcxxabi port, allows the first binaries with exception handling to properly run.
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Further unwinding fixes.
These changes allow the first exception handling binaries to build and run successfully on cosmo.
Part of #1065.