Split ast based parts from InferrerEngineImpl

pkg/compiler/lib/src/inferrer/builder_kernel.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 'package:kernel/ast.dart' as ir;
 
 import '../closure.dart';
 import '../compiler.dart';
 import '../elements/elements.dart';
 import '../elements/entities.dart';
@@ skipping 47 matching lines @@
     if (resolvedAst.kind == ResolvedAstKind.PARSED) {
       node = resolvedAst.node;
     }
     FieldInitializationScope fieldScope = (analyzedNode is ir.Constructor)
         ? new FieldInitializationScope(types)
         : null;
     locals =
         new LocalsHandler(inferrer, types, compiler.options, node, fieldScope);
   }
 
-  factory KernelTypeGraphBuilder(MemberElement element, ResolvedAst resolvedAst,
-      Compiler compiler, InferrerEngine inferrer,
+  factory KernelTypeGraphBuilder(
+      MemberElement element, Compiler compiler, InferrerEngine inferrer,
       [LocalsHandler handler]) {
-    var adapter = _createKernelAdapter(compiler, resolvedAst);
+    var adapter = _createKernelAdapter(compiler, element.resolvedAst);
     var node = adapter.getMemberNode(element);
     return new KernelTypeGraphBuilder.internal(
         element,
-        resolvedAst,
+        element.resolvedAst,
         element.outermostEnclosingMemberOrTopLevel.implementation,
         inferrer,
         compiler,
         handler,
         adapter,
         node);
   }
 
   static KernelAstAdapter _createKernelAdapter(
       Compiler compiler, ResolvedAst resolvedAst) {
@@ skipping 78 matching lines @@
           : types.simplifyPhi(null, null, elementType);
       TypeInformation containerType =
           listLiteral.isConst ? types.constListType : types.growableListType;
       // TODO(efortuna): Change signature of allocateList and the rest of
       // type_system to deal with Kernel elements.
       return types.allocateList(containerType, astAdapter.getNode(listLiteral),
           outermostElement, elementType, length);
     });
   }
 }