Remove dead code for closure-converting tearoffs.

pkg/kernel/lib/transformations/closure/info.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 kernel.transformations.closure.info;
 
 import '../../ast.dart'
     show
         Class,
         Constructor,
@@ skipping 44 matching lines @@
   Class currentClass;
 
   Member currentMember;
 
   FunctionNode currentMemberFunction;
 
   bool get isOuterMostContext {
     return currentFunction == null || currentMemberFunction == currentFunction;
   }
 
-  /// Maps the names of all instance methods that may be torn off (aka
-  /// implicitly closurized) to `${name.name}#get`.
-  Map<Name, Name> get tearOffGetterNames {
-    // TODO(dmitryas): Add support for tear-offs. When added, uncomment this.
-    //
-    // Map<Name, Name> result = <Name, Name>{};
-    // for (Name name in declaredInstanceMethodNames) {
-    //   if (invokedGetters.contains(name)) {
-    //     result[name] = new Name("${name.name}#get", name.library);
-    //   }
-    // }
-    // return result;
-    //
-    // Currently an empty map is returned, so no tear-offs supporting functions
-    // and getters are generated, and no property-get targets are renamed.
-    return <Name, Name>{};
-  }
-

[Dmitry Stefantsov, 2017/07/20 13:37:06]

You probably may want to remove [invokedGetters] and
[declaredInstanceMethodNames] as well as the accompanying code.

[sjindel, 2017/07/20 13:45:46]

Done.

   void beginMember(Member member, [FunctionNode function]) {
     currentMemberLocalNames.clear();
     if (function != null) {
       localNames[function] = computeUniqueLocalName(member.name.name);
     }
     currentMember = member;
     currentMemberFunction = function;
   }
 
   void endMember() {
@@ skipping 154 matching lines @@
 
   saveCurrentFunction(void f()) {
     var saved = currentFunction;
     try {
       f();
     } finally {
       currentFunction = saved;
     }
   }
 }