src/vs/platform/contextkey/browser/contextKeyService.ts/OverlayContextKeyService/contextMatchesRules
class OverlayContextKeyService:	contextMatchesRules(rules: ContextKeyExpression | undefined): boolean {
		const context = this.getContextValuesContainer(this.contextId);
		const result = KeybindingResolver.contextMatchesRules(context, rules);
		return result;
	}