Remove HRuntimeType scheme for function types.

pkg/compiler/lib/src/ssa/ssa_tracer.dart

 // Copyright (c) 2013, 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 ssa.tracer;
 
 import '../../compiler_new.dart' show OutputSink;
 import '../diagnostics/invariant.dart' show DEBUG_MODE;
 import '../js_backend/namer.dart' show Namer;
 import '../tracer.dart';
@@ skipping 518 matching lines @@
     return "TypeInfoReadVariable: "
         "${temporaryId(node.inputs.single)}.${node.variable}";
   }
 
   String visitTypeInfoExpression(HTypeInfoExpression node) {
     var inputs = node.inputs.map(temporaryId).join(', ');
     return "TypeInfoExpression: ${node.kindAsString} ${node.dartType}"
         " ($inputs)";
   }
 
-  String visitReadTypeVariable(HReadTypeVariable node) {
-    var inputs = node.inputs.map(temporaryId).join(', ');
-    return "ReadTypeVariable: ${node.dartType} ${node.hasReceiver} $inputs";
-  }
-
-  String visitFunctionType(HFunctionType node) {
-    var inputs = node.inputs.map(temporaryId).join(', ');
-    return "FunctionType: ${node.dartType} $inputs";
-  }
-
-  String visitVoidType(HVoidType node) {
-    return "VoidType";
-  }
-
-  String visitInterfaceType(HInterfaceType node) {
-    return "InterfaceType: ${node.dartType}";
-  }
-
-  String visitDynamicType(HDynamicType node) {
-    return "DynamicType";
-  }
-
   String visitAwait(HAwait node) {
     return "Await: ${temporaryId(node.inputs[0])}";
   }
 
   String visitYield(HYield node) {
     return "Yield${node.hasStar ? "*" : ""}: ${temporaryId(node.inputs[0])}";
   }
 }