Demonstrates spidermonkey running on Node.js via WASI preview2.

Builds component_runtime.core.wasm against wasi_snapshot_preview1.command.wasm when running:

./build-preview2.sh

Outputting dist containing the JS component.

Test runs with node test.js against this component.

The test demonstrates a command followed by running an export.

The code in the export includes the following:

printf("HELLO LOG");
component_runtime_string_t log { .ptr = const_cast<char*>(&"HELLO() LOG"[0]), .len = 11 };
wasi_logging2_log(WASI_LOGGING2_LEVEL_INFO, &log, &log);

This should output:

HELLO LOG
info: (HELLO() LOG) HELLO() LOG

But instead the printf gets masked.

The printf calls during the command main work fine though, outputting:

:: Initializing
:: Initialization completed successfully

Therefore printf is somehow being disabled after main.