(Infinite) Loops, br(anch) not working

[void4]

The following calls the imported function only once:

webassemblyjs = require("webassemblyjs");

var code = `
(module
  (import "a" "a" (func $a (param i32)))
  (func $custom (param i32)
    (block
      (loop
        (get_local 0)
        (call $a)
        (br 0)
      )
    )
  )
  (export "custom" (func $custom))
)
`
function a(v) {
    console.log(v)
}

var IO = {"a":{a}}
var instance = webassemblyjs.instantiateFromSource(code, IO);
try {
    var result = instance.exports.custom(1);
    console.log(result)
} catch (e) {
    console.log("Exception:", e)
}

This may be related to: #66

[xtuc]

Btw here's a PR #338, i'm currently working on it

[xtuc]

I just merged #449, branching and control flow should be easier now.