Start unraveling circularities between analyzer and front_end/kernel.

pkg/front_end/lib/src/fasta/analyzer/analyzer.dart

-// Copyright (c) 2016, 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 fasta.analyzer;
-
-import 'package:analyzer/analyzer.dart' show AstNode;
-
-import 'package:analyzer/dart/element/element.dart' show LocalElement;
-
-import 'package:kernel/analyzer/ast_from_analyzer.dart' show ExpressionScope;
-
-import 'package:kernel/ast.dart' show Library, TreeNode;
-
-import '../builder/scope.dart' show Scope;
-
-import '../kernel/kernel_builder.dart'
-    show Builder, KernelFormalParameterBuilder;
-
-import 'element_store.dart' show ElementStore;
-
-export 'ast_builder.dart' show AstBuilder;
-
-export 'element_store.dart' show ElementStore;
-
-TreeNode toKernel(
-    AstNode node, ElementStore store, Library library, Scope scope) {
-  ExpressionScope expressionScope = new ExpressionScope(store, library);
-  scope.local.forEach((String name, Builder builder) {
-    if (builder is KernelFormalParameterBuilder) {
-      LocalElement local = store[builder];
-      assert(local != null);
-      assert(builder.declaration != null);
-      expressionScope.localVariables[local] = builder.declaration;
-    }
-  });
-  return expressionScope.buildStatement(node);
-}