Enable linting for the test directory. A number of changes was made so
all tests conform the current rules used by lib and src directories. The
only exception for tests is that unreachable (dead) code is allowed.
test-fs-non-number-arguments-throw had to be excluded from the changes
because of a weird issue on Windows CI.
PR-URL: https://github.com/nodejs/io.js/pull/1721
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
When debug in remote mode with host:port or pid, the interface
spawn child process also. If the debugger agent is running, will
get following output:
```
< Error: listen EADDRINUSE :::5858
< at Object.exports._errnoException (util.js:734:11)
< at exports._exceptionWithHostPort (util.js:757:20)
< at Agent.Server._listen2 (net.js:1155:14)
< at listen (net.js:1181:10)
< at Agent.Server.listen (net.js:1268:5)
< at Object.start (_debug_agent.js:21:9)
< at startup (node.js:68:9)
< at node.js:799:3
```
This fix won't spawn child process and no more error message was
shown.
When use `iojs debug`, the tip information just like this:
```
Usage: iojs debug script.js
```
This fix will display the advance usage also:
```
Usage: iojs debug script.js
iojs debug <host>:<port>
iojs debug -p <pid>
```
Fixes: https://github.com/iojs/io.js/issues/889
PR-URL: https://github.com/iojs/io.js/pull/1282
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
