local code completion computer improvements

pkg/analysis_services/lib/src/completion/local_computer.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.completion.computer.dart.local;
 
 import 'dart:async';
 
 import 'package:analysis_services/completion/completion_computer.dart';
 import 'package:analysis_services/completion/completion_suggestion.dart';
@@ skipping 67 matching lines @@
   }
 
   visitBlock(Block node) {
     node.statements.forEach((Statement stmt) {
       if (stmt.offset < offset) {
         if (stmt is LabeledStatement) {
           stmt.labels.forEach((Label label) {
 //            addSuggestion(label.label, CompletionSuggestionKind.LABEL);
           });
         } else if (stmt is VariableDeclarationStatement) {
-          addSuggestions(stmt.variables, CompletionSuggestionKind.VARIABLE);
+          stmt.variables.variables.forEach((VariableDeclaration varDecl) {
+            if (varDecl.end < offset) {
+              addSuggestion(varDecl.name, CompletionSuggestionKind.VARIABLE);
+            }
+          });
         }
       }
     });
     visitNode(node);
   }
 
   visitCatchClause(CatchClause node) {
     addSuggestion(node.exceptionParameter, CompletionSuggestionKind.PARAMETER);
     addSuggestion(node.stackTraceParameter, CompletionSuggestionKind.PARAMETER);
     visitNode(node);
@@ skipping 67 matching lines @@
         addSuggestion(param.identifier, CompletionSuggestionKind.PARAMETER);
       }
     });
     visitNode(node);
   }
 
   visitNode(AstNode node) {
     node.parent.accept(this);
   }
 }