Merge pull request microsoft#183874 from r3m0t/fix-interactive-signature

Add signature help in the interactive (fixes microsoft#183873)

Author: amunger

src/vs/editor/contrib/parameterHints/browser/parameterHints.ts

@@ -20,7 +20,7 @@ import { IInstantiationService } from 'vs/platform/instantiation/common/instanti
 import { KeybindingWeight } from 'vs/platform/keybinding/common/keybindingsRegistry';
 import { ParameterHintsWidget } from './parameterHintsWidget';
 
-class ParameterHintsController extends Disposable implements IEditorContribution {
+export class ParameterHintsController extends Disposable implements IEditorContribution {
 
 	public static readonly ID = 'editor.controller.parameterHints';
 

src/vs/workbench/contrib/interactive/browser/interactiveEditor.ts

@@ -41,6 +41,7 @@ import { IContextMenuService } from 'vs/platform/contextview/browser/contextView
 import { createActionViewItem, createAndFillInActionBarActions } from 'vs/platform/actions/browser/menuEntryActionViewItem';
 import { IAction } from 'vs/base/common/actions';
 import { EditorExtensionsRegistry } from 'vs/editor/browser/editorExtensions';
+import { ParameterHintsController } from 'vs/editor/contrib/parameterHints/browser/parameterHints';
 import { MenuPreventer } from 'vs/workbench/contrib/codeEditor/browser/menuPreventer';
 import { SelectionClipboardContributionID } from 'vs/workbench/contrib/codeEditor/browser/selectionClipboard';
 import { ContextMenuController } from 'vs/editor/contrib/contextmenu/browser/contextmenu';
@@ -369,6 +370,7 @@ export class InteractiveEditor extends EditorPane {
 					SelectionClipboardContributionID,
 					ContextMenuController.ID,
 					SuggestController.ID,
+					ParameterHintsController.ID,
 					SnippetController2.ID,
 					TabCompletionController.ID,
 					ModesHoverController.ID,