Change spanFromNode to spanFromSpannable.

sdk/lib/_internal/compiler/implementation/mirrors/dart2js_mirror.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library mirrors_dart2js;
 
 import 'dart:async';
 import 'dart:io';
 import 'dart:uri';
 
@@ skipping 198 matching lines @@
                      {Node node, Token token, HInstruction instruction,
                       Element element}) {
     cancel('Internal error: $message', node: node, token: token,
            instruction: instruction, element: element);
   }
 
   void internalErrorOnElement(Element element, String message) {
     internalError(message, element: element);
   }
 
-  SourceSpan spanFromNode(Node node, [Uri uri]) {
+  SourceSpan spanFromSpannable(Node node, [Uri uri]) {
     // TODO(johnniwinther): implement this.
     throw 'unimplemented';
   }
 
   void reportMessage(SourceSpan span, Diagnostic message,
                      diagnostics.Diagnostic kind) {
     // TODO(johnniwinther): implement this.
     throw 'unimplemented';
   }
 
@@ skipping 1629 matching lines @@
       return new Future.immediate(
           new Dart2JsStringConstantMirror.fromString(mirrors, text));
     } else if (fieldName == 'trimmedText') {
       return new Future.immediate(
           new Dart2JsStringConstantMirror.fromString(mirrors, trimmedText));
     }
     // TODO(johnniwinther): Which exception/error should be thrown here?
     throw new UnsupportedError('InstanceMirror does not have a reflectee');
   }
 }