Add variable declaration support to the DeclaredIdentifier AST node in the Kythe Dart indexer.

pkg/analysis_server/lib/src/services/kythe/kythe_visitors.dart

 // Copyright (c) 2017, 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.
 
 import 'dart:convert';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/standard_resolution_map.dart';
 import 'package:analyzer/dart/ast/syntactic_entity.dart';
 import 'package:analyzer/dart/ast/token.dart';
@@ skipping 412 matching lines @@
       // visit children
       _safelyVisit(node.documentationComment);
       _safelyVisitList(node.metadata);
       _safelyVisit(node.parameters);
       _safelyVisitList(node.initializers);
       _safelyVisit(node.body);
     });
   }
 
   @override
+  visitDeclaredIdentifier(DeclaredIdentifier node) {
+    // variable
+    var variableVName = addNodeAndFacts(schema.VARIABLE_KIND,
+        element: node.element,
+        subKind: schema.LOCAL_SUBKIND,
+        completeFact: schema.DEFINITION);
+
+    // anchor
+    addAnchorEdgesContainingEdge(
+        syntacticEntity: node.identifier,
+        edges: [
+          schema.DEFINES_BINDING_EDGE,
+        ],
+        target: variableVName,
+        enclosingTarget: _enclosingVName);
+
+    // type
+    addEdge(
+        variableVName,
+        schema.TYPED_EDGE,
+        _vNameFromType(
+            resolutionMap.elementDeclaredByDeclaredIdentifier(node).type));
+
+    // no children
+  }
+
+  @override
   visitEnumConstantDeclaration(EnumConstantDeclaration node) {
     // constant node
     var constDeclVName =
         addNodeAndFacts(schema.CONSTANT_KIND, element: node.element);
 
     // anchor- defines/binding, defines
     addAnchorEdgesContainingEdge(
         syntacticEntity: node.name,
         edges: [
           schema.DEFINES_BINDING_EDGE,
@@ skipping 945 matching lines @@
   }
 
   @override
   StringBuffer visitTypeParameterElement(TypeParameterElement e) {
     // It is legal to have a named constructor with the same name as a type
     // parameter.  So we distinguish them by using '.' between the class (or
     // typedef) name and the type parameter name.
     return e.enclosingElement.accept(this)..write('.')..write(e.name);
   }
 }