switch textChange to interface

Author: mhegazy

src/services/formatting/formattingManager.ts

@@ -112,9 +112,11 @@ module TypeScript.Services.Formatting {
 
             //
             // TODO: Change the ILanguageService interface to return TextEditInfo (with start, and length) instead of TextEdit (with minChar and limChar)
-            formattingEdits.forEach((item) => {
-                var edit = new ts.TextChange(new TextSpan(item.position, item.length), item.replaceWith);
-                result.push(edit);
+            formattingEdits.forEach(item => {
+                result.push({
+                    span: new TextSpan(item.position, item.length),
+                    newText: item.replaceWith
+                });
             });
 
             return result;

src/services/services.ts

@@ -731,18 +731,8 @@ module ts {
     }
 
     export class TextChange {
-        constructor(public span: TypeScript.TextSpan, public newText: string) {
-        }
-
-        static createInsert(pos: number, newText: string): TextChange {
-            return new TextChange(new TypeScript.TextSpan(pos, 0), newText);
-        }
-        static createDelete(start: number, end: number): TextChange {
-            return new TextChange(TypeScript.TextSpan.fromBounds(start, end), "");
-        }
-        static createReplace(start: number, end: number, newText: string): TextChange {
-            return new TextChange(TypeScript.TextSpan.fromBounds(start, end), newText);
-        }
+        span: TypeScript.TextSpan;
+        newText: string;
     }
 
     export interface ReferenceEntry {