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 475 matching lines @@
   }
 
   String visitIsViaInterceptor(HIsViaInterceptor node) {
     String type = node.typeExpression.toString();
     return "IsViaInterceptor: ${temporaryId(node.inputs[0])} is $type";
   }
 
   String visitTypeConversion(HTypeConversion node) {
     String checkedInput = temporaryId(node.checkedInput);
     String rest;
-    if (node.usesMethodOnType) {
-      assert(node.inputs.length == 2);
-      assert(identical(node.checkedInput, node.inputs.last));
-      rest = " ${temporaryId(node.inputs.first)}";
-    } else if (node.inputs.length == 2) {
+    if (node.inputs.length == 2) {
       rest = " ${temporaryId(node.inputs.last)}";
     } else {
       assert(node.inputs.length == 1);
       rest = "";
     }
     return "TypeConversion: $checkedInput to ${node.instructionType}$rest";
   }
 
   String visitTypeKnown(HTypeKnown node) {
     assert(node.inputs.length <= 2);
@@ skipping 18 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])}";
   }
 }