diff --git a/declarations.d.ts b/declarations.d.ts
index 83b612e4cad..770212b6768 100644
--- a/declarations.d.ts
+++ b/declarations.d.ts
@@ -228,36 +228,4 @@ declare module "@webassemblyjs/ast" {
 	export function isFuncImportDescr(n: Node): boolean;
 }
 
-// This "hack" is needed because typescript doesn't support recursive type definitions
-// It's referenced from "ruleSet-conditions" in schemas/WebpackOptions.json
-interface RuleSetConditionsRecursive
-	extends Array<import("./declarations/WebpackOptions").RuleSetCondition> {}
-interface RuleSetConditionsAbsoluteRecursive
-	extends Array<
-		import("./declarations/WebpackOptions").RuleSetConditionAbsolute
-	> {}
-
-/**
- * Global variable declarations
- * @todo Once this issue is resolved, remove these globals and add JSDoc onsite instead
- * https://github.com/Microsoft/TypeScript/issues/15626
- */
-declare const $hash$;
-declare const $requestTimeout$;
-declare const installedModules;
-declare const $require$;
-declare const hotDownloadManifest;
-declare const hotDownloadUpdateChunk;
-declare const hotDisposeChunk;
-declare const modules;
-declare const installedChunks;
-declare const hotAddUpdateChunk;
-declare const parentHotUpdateCallback;
-declare const $hotChunkFilename$;
-declare const $hotMainFilename$;
-declare namespace WebAssembly {}
-declare const importScripts;
-declare const $crossOriginLoading$;
-declare const chunkId;
-
 type TODO = any;
diff --git a/declarations/WebpackOptions.d.ts b/declarations/WebpackOptions.d.ts
index 57f9df076c3..372d2b2f6cd 100644
--- a/declarations/WebpackOptions.d.ts
+++ b/declarations/WebpackOptions.d.ts
@@ -132,7 +132,7 @@ export type RuleSetCondition =
  * This interface was referenced by `WebpackOptions`'s JSON-Schema
  * via the `definition` "RuleSetConditions".
  */
-export type RuleSetConditions = RuleSetConditionsRecursive;
+export type RuleSetConditions = RuleSetCondition[];
 /**
  * One or multiple rule conditions
  *
@@ -181,7 +181,7 @@ export type RuleSetConditionAbsolute =
  * This interface was referenced by `WebpackOptions`'s JSON-Schema
  * via the `definition` "RuleSetConditionsAbsolute".
  */
-export type RuleSetConditionsAbsolute = RuleSetConditionsAbsoluteRecursive;
+export type RuleSetConditionsAbsolute = RuleSetConditionAbsolute[];
 /**
  * This interface was referenced by `WebpackOptions`'s JSON-Schema
  * via the `definition` "RuleSetLoader".
diff --git a/lib/HotModuleReplacement.runtime.js b/lib/HotModuleReplacement.runtime.js
index 5756623e629..8427189b30a 100644
--- a/lib/HotModuleReplacement.runtime.js
+++ b/lib/HotModuleReplacement.runtime.js
@@ -2,7 +2,17 @@
 	MIT License http://www.opensource.org/licenses/mit-license.php
 	Author Tobias Koppers @sokra
 */
-/*global $hash$ $requestTimeout$ installedModules $require$ hotDownloadManifest hotDownloadUpdateChunk hotDisposeChunk modules */
+// eslint-disable no-unused-vars
+var $hash$ = undefined;
+var $requestTimeout$ = undefined;
+var installedModules = undefined;
+var $require$ = undefined;
+var hotDownloadManifest = undefined;
+var hotDownloadUpdateChunk = undefined;
+var hotDisposeChunk = undefined;
+var modules = undefined;
+var chunkId = undefined;
+
 module.exports = function() {
 	var hotApplyOnUpdate = true;
 	// eslint-disable-next-line no-unused-vars
@@ -204,7 +214,6 @@ module.exports = function() {
 			/*foreachInstalledChunks*/
 			// eslint-disable-next-line no-lone-blocks
 			{
-				/*globals chunkId */
 				hotEnsureUpdateChunk(chunkId);
 			}
 			if (
diff --git a/lib/node/NodeMainTemplate.runtime.js b/lib/node/NodeMainTemplate.runtime.js
index d34388bf76f..0880124b2d0 100644
--- a/lib/node/NodeMainTemplate.runtime.js
+++ b/lib/node/NodeMainTemplate.runtime.js
@@ -2,7 +2,12 @@
 	MIT License http://www.opensource.org/licenses/mit-license.php
 	Author Tobias Koppers @sokra
 */
-/*global installedChunks $hotChunkFilename$ hotAddUpdateChunk $hotMainFilename$ */
+// eslint-disable-next-line no-unused-vars
+var $hotChunkFilename$ = undefined;
+var hotAddUpdateChunk = undefined;
+var installedChunks = undefined;
+var $hotMainFilename$ = undefined;
+
 module.exports = function() {
 	// eslint-disable-next-line no-unused-vars
 	function hotDownloadUpdateChunk(chunkId) {
diff --git a/lib/node/NodeMainTemplateAsync.runtime.js b/lib/node/NodeMainTemplateAsync.runtime.js
index 35eb47b665e..a021f5a0d4e 100644
--- a/lib/node/NodeMainTemplateAsync.runtime.js
+++ b/lib/node/NodeMainTemplateAsync.runtime.js
@@ -2,7 +2,13 @@
 	MIT License http://www.opensource.org/licenses/mit-license.php
 	Author Tobias Koppers @sokra
 */
-/*global installedChunks $hotChunkFilename$ $require$ hotAddUpdateChunk $hotMainFilename$ */
+// eslint-disable-next-line no-unused-vars
+var $hotChunkFilename$ = undefined;
+var $require$ = undefined;
+var hotAddUpdateChunk = undefined;
+var $hotMainFilename$ = undefined;
+var installedChunks = undefined;
+
 module.exports = function() {
 	// eslint-disable-next-line no-unused-vars
 	function hotDownloadUpdateChunk(chunkId) {
diff --git a/lib/web/JsonpMainTemplate.runtime.js b/lib/web/JsonpMainTemplate.runtime.js
index 58dcf8312f1..cbaa01ef7aa 100644
--- a/lib/web/JsonpMainTemplate.runtime.js
+++ b/lib/web/JsonpMainTemplate.runtime.js
@@ -2,7 +2,14 @@
 	MIT License http://www.opensource.org/licenses/mit-license.php
 	Author Tobias Koppers @sokra
 */
-/*globals hotAddUpdateChunk parentHotUpdateCallback document XMLHttpRequest $require$ $hotChunkFilename$ $hotMainFilename$ $crossOriginLoading$ */
+// eslint-disable-next-line no-unused-vars
+var hotAddUpdateChunk = undefined;
+var parentHotUpdateCallback = undefined;
+var $require$ = undefined;
+var $hotMainFilename$ = undefined;
+var $hotChunkFilename$ = undefined;
+var $crossOriginLoading$ = undefined;
+
 module.exports = function() {
 	// eslint-disable-next-line no-unused-vars
 	function webpackHotUpdateCallback(chunkId, moreModules) {
diff --git a/lib/webworker/WebWorkerMainTemplate.runtime.js b/lib/webworker/WebWorkerMainTemplate.runtime.js
index 8c63f7729e3..aa240b2246c 100644
--- a/lib/webworker/WebWorkerMainTemplate.runtime.js
+++ b/lib/webworker/WebWorkerMainTemplate.runtime.js
@@ -2,7 +2,15 @@
 	MIT License http://www.opensource.org/licenses/mit-license.php
 	Author Tobias Koppers @sokra
 */
-/*globals installedChunks hotAddUpdateChunk parentHotUpdateCallback importScripts XMLHttpRequest $require$ $hotChunkFilename$ $hotMainFilename$ */
+// eslint-disable-next-line no-unused-vars
+var hotAddUpdateChunk = undefined;
+var parentHotUpdateCallback = undefined;
+var $require$ = undefined;
+var $hotChunkFilename$ = undefined;
+var $hotMainFilename$ = undefined;
+var installedChunks = undefined;
+var importScripts = undefined;
+
 module.exports = function() {
 	// eslint-disable-next-line no-unused-vars
 	function webpackHotUpdateCallback(chunkId, moreModules) {
diff --git a/schemas/WebpackOptions.json b/schemas/WebpackOptions.json
index 310e3388085..1fd61706d84 100644
--- a/schemas/WebpackOptions.json
+++ b/schemas/WebpackOptions.json
@@ -1428,8 +1428,7 @@
             "$ref": "#/definitions/RuleSetCondition"
           }
         ]
-      },
-      "tsType": "RuleSetConditionsRecursive"
+      }
     },
     "RuleSetConditionsAbsolute": {
       "type": "array",
@@ -1440,8 +1439,7 @@
             "$ref": "#/definitions/RuleSetConditionAbsolute"
           }
         ]
-      },
-      "tsType": "RuleSetConditionsAbsoluteRecursive"
+      }
     },
     "RuleSetLoader": {
       "type": "string",