src/vs/workbench/services/preferences/browser/keybindingsEditorModel.ts/KeybindingItemMatches/isCompleteMatch
class KeybindingItemMatches:	private isCompleteMatch(part: ResolvedKeybindingPart | null, match: KeybindingMatch): boolean {
		if (!part) {
			return true;
		}
		if (!match.keyCode) {
			return false;
		}
		if (part.metaKey && !match.metaKey) {
			return false;
		}
		if (part.altKey && !match.altKey) {
			return false;
		}
		if (part.ctrlKey && !match.ctrlKey) {
			return false;
		}
		if (part.shiftKey && !match.shiftKey) {
			return false;
		}
		return true;
	}