Raw bindings get undefined "exports" var

[calibertechnology]

Bug description

Expected exports to contain wasm exports, instead getting undefined value.

Steps to reproduce

Run asc with --bindings raw. In build/release.js line 24 now contains:

const { exports } = await WebAssembly.instantiate(module, adaptedImports);

I think this should instead be

const { instance } = await WebAssembly.instantiate(module, adaptedImports);
const { exports } = instance.exports;

I haven't done a PR before, so I'll describe the proposed change:

In src/bindings/js.ts line 646:

replace sb.push("const { exports } = await WebAssembly.instantiate(module");
with sb.push("const { instance } = await WebAssembly.instantiate(module");

then at line 652 insert:

indent(sb, this.indentLevel);
sb.push("const { exports } = instance.exports;\n");

AssemblyScript version

v0.27.36

[CountBleck]

It should work if you pass in a WebAssembly.Module instance instead of an ArrayBuffer. Confusingly, WebAssembly.instantiate has two different return types, depending on the type of the argument.