feat(plugin): expose ControlFlow to JS

[magurotuna]

PoC

Let's say we have foo.js with the following content:

function f() {
  return 1;
  return "f";
}

function g() {
  throw new Error();
  return "g";
}

running cargo run --example dlint -- run foo.ts --plugin ./examples/dlint/plugins/test_plugin3.js, then we can see:

[bartlomieju]

@magurotuna this is great!

[bartlomieju]

Nitpick: can you add op_ prefix to names of ops? I find it a lot easier to search for op call sites

[magurotuna]

Oh I forgot that. I'll do it tomorrow (because it's late at night here :)

[magurotuna]

Done b6a85be

[bartlomieju]

LGTM, no comments