Fix some types

src/vs/editor/common/config/editorOptions.ts

@@ -23,16 +23,14 @@ export interface IEditorScrollbarOptions {
 	arrowSize?: number;
 	/**
 	 * Render vertical scrollbar.
-	 * Accepted values: 'auto', 'visible', 'hidden'.
 	 * Defaults to 'auto'.
 	 */
-	vertical?: string;
+	vertical?: 'auto' | 'visible' | 'hidden';
 	/**
 	 * Render horizontal scrollbar.
-	 * Accepted values: 'auto', 'visible', 'hidden'.
 	 * Defaults to 'auto'.
 	 */
-	horizontal?: string;
+	horizontal?: 'auto' | 'visible' | 'hidden';
 	/**
 	 * Cast horizontal and vertical shadows when the content is scrolled.
 	 * Defaults to true.

src/vs/editor/common/modes.ts

@@ -418,7 +418,7 @@ export interface CompletionItem {
 	 * this completion. When `falsy` the [label](#CompletionItem.label)
 	 * is used.
 	 */
-	insertText: string;
+	insertText?: string;
 	/**
 	 * Addition rules (as bitmask) that should be applied when inserting
 	 * this completion.
@@ -633,8 +633,8 @@ export interface SignatureHelpContext {
  */
 export interface SignatureHelpProvider {
 
-	readonly signatureHelpTriggerCharacters: ReadonlyArray<string>;
-	readonly signatureHelpRetriggerCharacters: ReadonlyArray<string>;
+	readonly signatureHelpTriggerCharacters?: ReadonlyArray<string>;
+	readonly signatureHelpRetriggerCharacters?: ReadonlyArray<string>;
 
 	/**
 	 * Provide help for the signature at the given position and document.

src/vs/monaco.d.ts

@@ -2392,16 +2392,14 @@ declare namespace monaco.editor {
 		arrowSize?: number;
 		/**
 		 * Render vertical scrollbar.
-		 * Accepted values: 'auto', 'visible', 'hidden'.
 		 * Defaults to 'auto'.
 		 */
-		vertical?: string;
+		vertical?: 'auto' | 'visible' | 'hidden';
 		/**
 		 * Render horizontal scrollbar.
-		 * Accepted values: 'auto', 'visible', 'hidden'.
 		 * Defaults to 'auto'.
 		 */
-		horizontal?: string;
+		horizontal?: 'auto' | 'visible' | 'hidden';
 		/**
 		 * Cast horizontal and vertical shadows when the content is scrolled.
 		 * Defaults to true.
@@ -4765,7 +4763,7 @@ declare namespace monaco.languages {
 		 * this completion. When `falsy` the [label](#CompletionItem.label)
 		 * is used.
 		 */
-		insertText: string;
+		insertText?: string;
 		/**
 		 * Addition rules (as bitmask) that should be applied when inserting
 		 * this completion.
@@ -4941,8 +4939,8 @@ declare namespace monaco.languages {
 	 * the [parameter hints](https://code.visualstudio.com/docs/editor/intellisense)-feature.
 	 */
 	export interface SignatureHelpProvider {
-		readonly signatureHelpTriggerCharacters: ReadonlyArray<string>;
-		readonly signatureHelpRetriggerCharacters: ReadonlyArray<string>;
+		readonly signatureHelpTriggerCharacters?: ReadonlyArray<string>;
+		readonly signatureHelpRetriggerCharacters?: ReadonlyArray<string>;
 		/**
 		 * Provide help for the signature at the given position and document.
 		 */