Updated support for WebStorm

Summary:
Added the executable path to the `COMMON_EDITORS`
Added the executable name to the arguments selections

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Need to be able to jump to specific files and line numbers in WebStorm and autodetect WebStorm as editor, without setting up any environment vars.

Start a new RN project in WebStorm, make some JS errors and click the errors to confirm that it will jump to the right file and line number in WebStorm.

Make sure that none of the other `COMMON_EDITORS` are running, unless you set the `REACT_EDITOR` environment variable.
Closes https://github.com/facebook/react-native/pull/15984

Differential Revision: D5911698

Pulled By: shergin

fbshipit-source-id: 54fced7539520553dd2a93bf7ca7e4f457b0bfc3

local-cli/server/util/launchEditor.js

@@ -32,11 +32,13 @@ var COMMON_EDITORS = {
   '/Applications/Atom.app/Contents/MacOS/Atom': 'atom',
   '/Applications/Atom Beta.app/Contents/MacOS/Atom Beta':
     '/Applications/Atom Beta.app/Contents/MacOS/Atom Beta',
+  '/Applications/IntelliJ IDEA.app/Contents/MacOS/idea': 'idea',
   '/Applications/Sublime Text.app/Contents/MacOS/Sublime Text':
     '/Applications/Sublime Text.app/Contents/SharedSupport/bin/subl',
   '/Applications/Sublime Text 2.app/Contents/MacOS/Sublime Text 2':
     '/Applications/Sublime Text 2.app/Contents/SharedSupport/bin/subl',
   '/Applications/Visual Studio Code.app/Contents/MacOS/Electron': 'code',
+  '/Applications/WebStorm.app/Contents/MacOS/webstorm': 'webstorm',
 };
 
 function addWorkspaceToArgumentsIfExists(args, workspace) {
@@ -56,6 +58,7 @@ function getArgumentsForLineNumber(editor, fileName, lineNumber, workspace) {
     case 'Atom Beta':
     case 'subl':
     case 'sublime':
+    case 'webstorm':
     case 'wstorm':
     case 'appcode':
     case 'charm':