src/vs/workbench/contrib/debug/browser/debugEditorContribution.ts/DebugEditorContribution/onKeyDown
class DebugEditorContribution:	private onKeyDown(e: IKeyboardEvent): void {
		const stopKey = env.isMacintosh ? KeyCode.Meta : KeyCode.Ctrl;
		if (e.keyCode !== stopKey) {
			// do not hide hover when Ctrl/Meta is pressed
			this.hideHoverWidget();
		}
	}