Shift-keybindings on special characters not resolving

[bdowling]

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Description

I can't decide if this is a resolver issue or a core keybindings issue really. There are a number of keys that are bound to Ctrl-Shift-[special character]. When these keys are being seen by keybinding-resolver, they no longer have the Shift in them, so often don't show a resolved mapping.

I noticed this on Ctrl-Shift-\ -- which in reality is actually ctrl-| and that's how keybinding-resolver is seeing it, so it doesn't show a mapping.

Now one fix for this, is to just put ctrl-| in keymaps instead, which now resolves properly, but at the same time atom IS responding to keymap defined as ctrl-shift-\. Which is a little odd.

I haven't dug to see if there is a way to get the key pressed vs "resulting key", but this is clearly happening different in the core key lookups.

Ctrl-Shift-8 is another example, Ctrl-* is what results.
From a usability standpoint, I guess I understand why like Ctrl-Shift-8 and Ctrl-Shift-9 are easier for a user to remember, but it really is ctrl-* and ctrl-( ;)

Capitalized letters do show up with the Shift Ctrl-Shift-P for example.
Ctrl-+ and Ctrl- -are interesting in that they are defined without listing shift, but also have matching bindings for the non-shifted keys.