typings: provide internal types for wasi bindings

[RulerOfCakes]

Added internal types for WASI bindings from node_wasi.h and node_wasi.cpp, according to the present JS/CPP source code and the documentation.

Defined in:

node/src/node_wasi.cc

Lines 117 to 124 in 027710e

	void WASI::New(const FunctionCallbackInfo<Value>& args) {
	CHECK(args.IsConstructCall());
	CHECK_EQ(args.Length(), 4);
	CHECK(args[0]->IsArray());
	CHECK(args[1]->IsArray());
	CHECK(args[2]->IsArray());
	CHECK(args[3]->IsArray());
	Environment* env = Environment::GetCurrent(args);

node/src/node_wasi.cc

Lines 1254 to 1265 in 027710e

	void WASI::_SetMemory(const FunctionCallbackInfo<Value>& args) {
	WASI* wasi;
	ASSIGN_OR_RETURN_UNWRAP(&wasi, args.This());
	CHECK_EQ(args.Length(), 1);
	if (!args[0]->IsWasmMemoryObject()) {
	return node::THROW_ERR_INVALID_ARG_TYPE(
	wasi->env(),
	"\"instance.exports.memory\" property must be a WebAssembly.Memory "
	"object");
	}
	wasi->memory_.Reset(wasi->env()->isolate(), args[0].As<WasmMemoryObject>());
	}

Exported from:

node/src/node_wasi.cc

Lines 1328 to 1330 in 027710e

	SetInstanceMethod(isolate, tmpl, "_setMemory", WASI::_SetMemory);
	SetConstructorFunction(context, target, "WASI", tmpl);

[nodejs-github-bot]

Landed in c890a96