Move helper to services/utilities

Author: Andy Hanson

src/compiler/utilities.ts

@@ -4318,10 +4318,6 @@ namespace ts {
         return createTextSpan(start, end - start);
     }
 
-    export function createTextSpanFromNode(node: Node, sourceFile?: SourceFile): TextSpan {
-        return createTextSpanFromBounds(node.getStart(sourceFile), node.getEnd());
-    }
-
     export function textChangeRangeNewSpan(range: TextChangeRange) {
         return createTextSpan(range.span.start, range.newLength);
     }

src/services/utilities.ts

@@ -1112,6 +1112,10 @@ namespace ts {
             return !tripleSlashDirectivePrefixRegex.test(commentText);
         }
     }
+
+    export function createTextSpanFromNode(node: Node, sourceFile?: SourceFile): TextSpan {
+        return createTextSpanFromBounds(node.getStart(sourceFile), node.getEnd());
+    }
 }
 
 // Display-part writer helpers