src/vs/workbench/contrib/scm/browser/dirtydiffDecorator.ts/GotoPreviousChangeAction/constructor
class GotoPreviousChangeAction:	constructor() {
		super({
			id: 'workbench.action.editor.previousChange',
			label: nls.localize('move to previous change', "Go to Previous Change"),
			alias: 'Go to Previous Change',
			precondition: TextCompareEditorActiveContext.toNegated(),
			kbOpts: { kbExpr: EditorContextKeys.editorTextFocus, primary: KeyMod.Shift | KeyMod.Alt | KeyCode.F5, weight: KeybindingWeight.EditorContrib }
		});
	}