Remove debugger id index for Node
Remove debugger id index for Node

In separate mode, the Node context is created within the context of
background page. Overwrite the debugger id will cause debugger filter
out the compiled scripts from Node.

Fixed #4121

kurainooni/nw.js,nwjs/nw.js,nwjs/nw.js,nwjs/nw.js,nwjs/nw.js,kurainooni/nw.js,nwjs/nw.js,kurainooni/nw.js,kurainooni/nw.js,nwjs/nw.js,kurainooni/nw.js,kurainooni/nw.js,kurainooni/nw.js