diff --git a/src/vs/editor/contrib/suggest/test/browser/suggestInlineCompletions.test.ts b/src/vs/editor/contrib/suggest/test/browser/suggestInlineCompletions.test.ts
index 5fafaa7cee4de..55f00dce232dd 100644
--- a/src/vs/editor/contrib/suggest/test/browser/suggestInlineCompletions.test.ts
+++ b/src/vs/editor/contrib/suggest/test/browser/suggestInlineCompletions.test.ts
@@ -4,22 +4,21 @@
  *--------------------------------------------------------------------------------------------*/
 
 import * as assert from 'assert';
+import { CancellationToken } from 'vs/base/common/cancellation';
 import { DisposableStore } from 'vs/base/common/lifecycle';
 import { URI } from 'vs/base/common/uri';
+import { mock } from 'vs/base/test/common/mock';
 import { Position } from 'vs/editor/common/core/position';
+import { Range } from 'vs/editor/common/core/range';
 import { CompletionContext, CompletionItem, CompletionItemKind, CompletionItemProvider, CompletionList, InlineCompletionTriggerKind, ProviderResult } from 'vs/editor/common/languages';
-import { createTextModel } from 'vs/editor/test/common/testTextModel';
+import { ITextModel } from 'vs/editor/common/model';
+import { TextModel } from 'vs/editor/common/model/textModel';
+import { ILanguageFeaturesService } from 'vs/editor/common/services/languageFeatures';
 import { SuggestInlineCompletions } from 'vs/editor/contrib/suggest/browser/suggestInlineCompletions';
+import { ISuggestMemoryService } from 'vs/editor/contrib/suggest/browser/suggestMemory';
 import { createCodeEditorServices, instantiateTestCodeEditor, ITestCodeEditor } from 'vs/editor/test/browser/testCodeEditor';
-import { EditorOption } from 'vs/editor/common/config/editorOptions';
-import { CancellationToken } from 'vs/base/common/cancellation';
-import { ILanguageFeaturesService } from 'vs/editor/common/services/languageFeatures';
-import { ITextModel } from 'vs/editor/common/model';
-import { Range } from 'vs/editor/common/core/range';
+import { createTextModel } from 'vs/editor/test/common/testTextModel';
 import { ServiceCollection } from 'vs/platform/instantiation/common/serviceCollection';
-import { ISuggestMemoryService } from 'vs/editor/contrib/suggest/browser/suggestMemory';
-import { mock } from 'vs/base/test/common/mock';
-import { TextModel } from 'vs/editor/common/model/textModel';
 import { TestInstantiationService } from 'vs/platform/instantiation/test/common/instantiationServiceMock';
 
 
@@ -73,7 +72,7 @@ suite('Suggest Inline Completions', function () {
 
 	test('Aggressive inline completions when typing within line #146948', async function () {
 
-		const completions: SuggestInlineCompletions = insta.createInstance(SuggestInlineCompletions, (id: EditorOption) => editor.getOption(id));
+		const completions: SuggestInlineCompletions = insta.createInstance(SuggestInlineCompletions, (id) => editor.getOption(id));
 
 		{
 			// (1,3), end of word -> suggestions
diff --git a/src/vs/platform/instantiation/common/instantiationService.ts b/src/vs/platform/instantiation/common/instantiationService.ts
index 78c34bc64f224..659430cd332fb 100644
--- a/src/vs/platform/instantiation/common/instantiationService.ts
+++ b/src/vs/platform/instantiation/common/instantiationService.ts
@@ -72,7 +72,6 @@ export class InstantiationService implements IInstantiationService {
 		}
 	}
 
-	createInstance(ctorOrDescriptor: any | SyncDescriptor<any>, ...rest: any[]): any; // Comment out this line to fix type issues
 	createInstance<T>(descriptor: SyncDescriptor0<T>): T;
 	createInstance<Ctor extends new (...args: any[]) => any, R extends InstanceType<Ctor>>(ctor: Ctor, ...args: GetLeadingNonServiceArgs<ConstructorParameters<Ctor>>): R;
 	createInstance(ctorOrDescriptor: any | SyncDescriptor<any>, ...rest: any[]): any {
diff --git a/src/vs/workbench/api/test/browser/mainThreadWorkspace.test.ts b/src/vs/workbench/api/test/browser/mainThreadWorkspace.test.ts
index 565c0dc80ae4f..a13928a488a4e 100644
--- a/src/vs/workbench/api/test/browser/mainThreadWorkspace.test.ts
+++ b/src/vs/workbench/api/test/browser/mainThreadWorkspace.test.ts
@@ -45,7 +45,7 @@ suite('MainThreadWorkspace', () => {
 			}
 		});
 
-		const mtw: MainThreadWorkspace = instantiationService.createInstance(<any>MainThreadWorkspace, SingleProxyRPCProtocol({ $initializeWorkspace: () => { } }));
+		const mtw = instantiationService.createInstance(MainThreadWorkspace, SingleProxyRPCProtocol({ $initializeWorkspace: () => { } }));
 		return mtw.$startFileSearch('foo', null, null, 10, new CancellationTokenSource().token);
 	});
 
@@ -67,7 +67,7 @@ suite('MainThreadWorkspace', () => {
 			}
 		});
 
-		const mtw: MainThreadWorkspace = instantiationService.createInstance(<any>MainThreadWorkspace, SingleProxyRPCProtocol({ $initializeWorkspace: () => { } }));
+		const mtw = instantiationService.createInstance(MainThreadWorkspace, SingleProxyRPCProtocol({ $initializeWorkspace: () => { } }));
 		return mtw.$startFileSearch('', null, null, 10, new CancellationTokenSource().token);
 	});
 
@@ -88,7 +88,7 @@ suite('MainThreadWorkspace', () => {
 			}
 		});
 
-		const mtw: MainThreadWorkspace = instantiationService.createInstance(<any>MainThreadWorkspace, SingleProxyRPCProtocol({ $initializeWorkspace: () => { } }));
+		const mtw = instantiationService.createInstance(MainThreadWorkspace, SingleProxyRPCProtocol({ $initializeWorkspace: () => { } }));
 		return mtw.$startFileSearch('', null, false, 10, new CancellationTokenSource().token);
 	});
 
@@ -102,7 +102,7 @@ suite('MainThreadWorkspace', () => {
 			}
 		});
 
-		const mtw: MainThreadWorkspace = instantiationService.createInstance(<any>MainThreadWorkspace, SingleProxyRPCProtocol({ $initializeWorkspace: () => { } }));
+		const mtw = instantiationService.createInstance(MainThreadWorkspace, SingleProxyRPCProtocol({ $initializeWorkspace: () => { } }));
 		return mtw.$startFileSearch('', null, 'exclude/**', 10, new CancellationTokenSource().token);
 	});
 });
diff --git a/src/vs/workbench/contrib/tasks/test/browser/taskTerminalStatus.test.ts b/src/vs/workbench/contrib/tasks/test/browser/taskTerminalStatus.test.ts
index 1aaa685e9c6a9..11239dc5fa2b9 100644
--- a/src/vs/workbench/contrib/tasks/test/browser/taskTerminalStatus.test.ts
+++ b/src/vs/workbench/contrib/tasks/test/browser/taskTerminalStatus.test.ts
@@ -36,6 +36,11 @@ class TestTerminal implements Partial<ITerminalInstance> {
 }
 
 class TestTask extends CommonTask {
+
+	constructor() {
+		super('test', undefined, undefined, {}, {}, { kind: '', label: '' });
+	}
+
 	protected getFolderId(): string | undefined {
 		throw new Error('Method not implemented.');
 	}
@@ -67,7 +72,7 @@ suite('Task Terminal Status', () => {
 		audioCueService = new TestAudioCueService();
 		taskTerminalStatus = new TaskTerminalStatus(taskService as any, audioCueService as any);
 		testTerminal = instantiationService.createInstance(TestTerminal) as any;
-		testTask = instantiationService.createInstance(TestTask);
+		testTask = instantiationService.createInstance(TestTask) as unknown as Task;
 		problemCollector = instantiationService.createInstance(TestProblemCollector) as any;
 	});
 	test('Should add failed status when there is an exit code on task end', async () => {