javascript tests fail with the error "TypeError: Mod._malloc is not a function"

[gbagan]

Hi,

I have tried to pass javascript/wasm API tests.
So I have installed Emscripten and run npm run build:wasm and npm run build:ts.
Both these commands succeed but, when I ran npm run test, almost all test fails with the error
TypeError: Mod._malloc is not a function

Finally I have succeed to pass the tests by adding _malloc on file scripts/build-wasm.ts line 43:
const extras = ['_malloc', '_set_throwy_error_handler', '_set_noop_error_handler', ...asyncFuncs.map(f => '_async_' + f)];

I am not sure it is the best solution but at least it works.

I can submit a PR if necessary.