src: adjust windows abort behavior to make sense

Raising SIGABRT is handled in the CRT in windows, calling _exit() with ambiguous code "3" by default.

This adjustment to the abort behavior gives a more sane exit code on abort, by calling _exit() directly with code 134.

I added a test I used initially in reference to recreating #12271 (closed) but it may be moot to merge.

Fixes: #12271 (closed)
Refs: https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/abort

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• tests and/or benchmarks are included
• commit message follows commit guidelines

Affected core subsystem(s)

src