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src: enable V8's WASM trap handlers

Rodrigo Muino Tomonari requested to merge github/fork/devsnek/enable-wasm-trap-handler into master

This uses SIGSEGV handlers to catch WASM out of bound (OOB) memory accesses instead of inserting OOB checks inline, resulting in a 25%-30% speed increase.

Note that installing a custom SIGSEGV handler will break this, resulting in potentially scary behaviour. Users should use node::RegisterSignalHandler instead.

Refs: https://github.com/nodejs/node/issues/14927

Closes #14927 (closed)

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • commit message follows commit guidelines

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