Method emit_u16

deps/v8/test/mjsunit/wasm/wasm-module-builder.js:1147–1151

(val)

  }

  emit_u16(val) {
    this.ensure_space(2);
    this.buffer[this.length++] = val;
    this.buffer[this.length++] = val >> 8;
  }

  emit_u32(val) {
    this.ensure_space(4);