Merge from vscode e6a45f4242ebddb7aa9a229f85555e8a3bd987e2 (#9253)

* Merge from vscode e6a45f4242ebddb7aa9a229f85555e8a3bd987e2

* skip failing tests

* remove github-authentication extensions

* ignore github compile steps

* ignore github compile steps

* check in compiled files

src/vs/editor/common/editorCommon.ts

@@ -154,6 +154,7 @@ export interface IConfiguration extends IDisposable {
 	readonly options: IComputedEditorOptions;
 
 	setMaxLineNumber(maxLineNumber: number): void;
+	setViewLineCount(viewLineCount: number): void;
 	updateOptions(newOptions: IEditorOptions): void;
 	getRawOptions(): IEditorOptions;
 	observeReferenceElement(dimension?: IDimension): void;
@@ -466,6 +467,12 @@ export interface IEditor {
 	 */
 	revealRangeNearTop(range: IRange, scrollType?: ScrollType): void;
 
+	/**
+	 * Scroll vertically or horizontally as necessary and reveal a range close to the top of the viewport,
+	 * optimized for viewing a code definition. Only if it lies outside the viewport.
+	 */
+	revealRangeNearTopIfOutsideViewport(range: IRange, scrollType?: ScrollType): void;
+
 	/**
 	 * Directly trigger a handler or an editor action.
 	 * @param source The source of the call.
@@ -671,9 +678,5 @@ export const Handler = {
 	CompositionStart: 'compositionStart',
 	CompositionEnd: 'compositionEnd',
 	Paste: 'paste',
-
 	Cut: 'cut',
-
-	Undo: 'undo',
-	Redo: 'redo',
 };