Start copying resolution/inference data from front end to analyzer ASTs.

pkg/analyzer/lib/src/fasta/ast_builder.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.ast_builder;
 
 import 'package:analyzer/analyzer.dart';
 import 'package:analyzer/dart/ast/ast_factory.dart' show AstFactory;
 import 'package:analyzer/dart/ast/standard_ast_factory.dart' as standard;
 import 'package:analyzer/dart/ast/token.dart' as analyzer show Token;
@@ skipping 44 matching lines @@
   bool parseGenericMethodComments = false;
 
   /// The name of the class currently being parsed, or `null` if no class is
   /// being parsed.
   String className;
 
   /// If true, this is building a full AST. Otherwise, only create method
   /// bodies.
   final bool isFullAst;
 
+  final bool generateKernel;
+
   AstBuilder(this.errorReporter, this.library, this.member, this.elementStore,
-      Scope scope, this.isFullAst,
+      Scope scope, this.isFullAst, this.generateKernel,
       [Uri uri])
       : uri = uri ?? library.fileUri,
         super(scope);
 
   createJumpTarget(JumpTargetKind kind, int charOffset) {
     // TODO(ahe): Implement jump targets.
     return null;
   }
 
   void beginLiteralString(Token token) {
@@ skipping 214 matching lines @@
   void finishFunction(annotations, formals, asyncModifier, FunctionBody body) {
     debugEvent("finishFunction");
     Statement bodyStatement;
     if (body is EmptyFunctionBody) {
       bodyStatement = ast.emptyStatement(body.semicolon);
     } else if (body is ExpressionFunctionBody) {
       bodyStatement = ast.returnStatement(null, body.expression, null);
     } else {
       bodyStatement = (body as BlockFunctionBody).block;
     }
-    var kernel = toKernel(bodyStatement, elementStore, library.library, scope);
-    if (member is ProcedureBuilder) {
-      ProcedureBuilder builder = member;
-      builder.body = kernel;
-    } else {
-      unexpected("procedure", "${member.runtimeType}", member.charOffset, uri);
+    if (generateKernel) {
+      var kernel =
+          toKernel(bodyStatement, elementStore, library.library, scope);
+      if (member is ProcedureBuilder) {
+        ProcedureBuilder builder = member;
+        builder.body = kernel;
+      } else {
+        unexpected(
+            "procedure", "${member.runtimeType}", member.charOffset, uri);
+      }
     }
   }
 
   void beginCascade(Token token) {
     debugEvent("beginCascade");
     Expression expression = pop();
     push(token);
     if (expression is CascadeExpression) {
       push(expression);
     } else {
@@ skipping 1704 matching lines @@
       } else if (identical('var', s)) {
         finalConstOrVarKeyword = token;
       } else if (identical('covariant', s)) {
         covariantKeyword = token;
       } else {
         unhandled("$s", "modifier", token.charOffset, null);
       }
     }
   }
 }