Don't search for 'declaration' of elements, just name is usually enough.

pkg/analysis_server/lib/src/services/refactoring/inline_local.dart

 // Copyright (c) 2014, 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 services.src.refactoring.inline_local;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol_server.dart' hide Element;
 import 'package:analysis_server/src/services/correction/source_range.dart';
@@ skipping 19 matching lines @@
   final AstProvider astProvider;
   final CompilationUnit unit;
   final int offset;
   CompilationUnitElement unitElement;
   CorrectionUtils utils;
 
   Element _variableElement;
   VariableDeclaration _variableNode;
   List<SearchMatch> _references;
 
-  InlineLocalRefactoringImpl(this.searchEngine, this.astProvider, this.unit, this.offset) {
+  InlineLocalRefactoringImpl(
+      this.searchEngine, this.astProvider, this.unit, this.offset) {
     unitElement = unit.element;
     utils = new CorrectionUtils(unit);
   }
 
   @override
   String get refactoringName => 'Inline Local Variable';
 
   @override
   int get referenceCount {
     if (_references == null) {
@@ skipping 19 matching lines @@
   @override
   Future<RefactoringStatus> checkInitialConditions() async {
     RefactoringStatus result = new RefactoringStatus();
     // prepare variable
     {
       AstNode offsetNode = new NodeLocator(offset).searchWithin(unit);
       if (offsetNode is SimpleIdentifier) {
         Element element = offsetNode.staticElement;
         if (element is LocalVariableElement) {
           _variableElement = element;
-          _variableNode = await astProvider.getResolvedNodeForElement(element);
+          AstNode name = await astProvider.getResolvedNameForElement(element);
+          _variableNode = name.parent as VariableDeclaration;
         }
       }
     }
     // validate node declaration
     if (!_isVariableDeclaredInStatement()) {
       result = new RefactoringStatus.fatal(
           'Local variable declaration or reference must be selected '
           'to activate this refactoring.');
       return new Future<RefactoringStatus>.value(result);
     }
@@ skipping 113 matching lines @@
         if (initializerOperator == TokenType.MINUS ||
             initializerOperator == TokenType.MINUS_MINUS) {
           return true;
         }
       }
     }
     // no () is needed
     return false;
   }
 }