fix compilation

src/vs/platform/configuration/common/configurationRegistry.ts

@@ -10,6 +10,7 @@ import { Registry } from 'vs/platform/registry/common/platform';
 import * as types from 'vs/base/common/types';
 import { IJSONContributionRegistry, Extensions as JSONExtensions } from 'vs/platform/jsonschemas/common/jsonContributionRegistry';
 import { ExtensionIdentifier } from 'vs/platform/extensions/common/extensions';
+import { values } from 'vs/base/common/map';
 
 export const Extensions = {
 	Configuration: 'base.contributions.configuration'
@@ -390,7 +391,7 @@ class ConfigurationRegistry implements IConfigurationRegistry {
 	}
 
 	private updateOverridePropertyPatternKey(): void {
-		for (const overrideIdentifier of this.overrideIdentifiers) {
+		for (const overrideIdentifier of values(this.overrideIdentifiers)) {
 			const overrideIdentifierProperty = `[${overrideIdentifier}]`;
 			const resourceLanguagePropertiesSchema: IJSONSchema = {
 				type: 'object',