Use an internal command to dismiss code hints before running other commands.
Also add a new command (and menu item) for showing code hints with Ctrl+Space shortcut.
Use "beforeExecuteCommand" event instead of an internal command to dismiss code hints.
Fix the shortcut not showing on Mac.
Remove Ctrl+Space key handling code in CHM.
Fix CHM unit test failures and add a new test for dismissing code hints.
Switch back to use "Space" and have shell code to do the actual mapping of it to the space character.
Make "Show Code Hints" in its own group.
Merge pull request #3812 from adobe/rlim/dismiss-hint-list

Dismiss code hints before running a command