Tests debug command for wasm

Running test: test
Waiting for wasm scripts to be parsed.
Ignoring script with url v8://test/instantiate
Got wasm script: wasm://wasm/7d022e0e
paused No 1
Script wasm://wasm/7d022e0e byte offset 35: Wasm opcode 0x20 (kExprLocalGet)
Debugger.resume
exports.main returned!