Use entities in various ssa helpers.

pkg/compiler/lib/src/ssa/invoke_dynamic_specializers.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.
 
 import '../compiler.dart' show Compiler;
 import '../constants/constant_system.dart';
 import '../constants/values.dart';
-import '../elements/elements.dart';
+import '../elements/elements.dart' show Name;
+import '../elements/entities.dart';
 import '../js_backend/js_backend.dart';
 import '../types/types.dart';
 import '../universe/call_structure.dart';
 import '../universe/selector.dart';
 import '../world.dart' show ClosedWorld;
 import 'nodes.dart';
 import 'types.dart';
 
 /**
  * [InvokeDynamicSpecializer] and its subclasses are helpers to
@@ skipping 359 matching lines @@
     }
     return super.computeTypeFromInputTypes(instruction, compiler, closedWorld);
   }
 
   BinaryOperation operation(ConstantSystem constantSystem) {
     return constantSystem.remainder;
   }
 
   HInstruction newBuiltinVariant(
       HInvokeDynamic instruction, Compiler compiler, ClosedWorld closedWorld) {
-    JavaScriptBackend backend = compiler.backend;
     return new HRemainder(
         instruction.inputs[1],
         instruction.inputs[2],
         instruction.selector,
         computeTypeFromInputTypes(instruction, compiler, closedWorld));
   }
 }
 
 class MultiplySpecializer extends BinaryArithmeticSpecializer {
   const MultiplySpecializer();
@@ skipping 340 matching lines @@
   const EqualsSpecializer();
 
   HInstruction tryConvertToBuiltin(
       HInvokeDynamic instruction, Compiler compiler, ClosedWorld closedWorld) {
     HInstruction left = instruction.inputs[1];
     HInstruction right = instruction.inputs[2];
     TypeMask instructionType = left.instructionType;
     if (right.isConstantNull() || left.isPrimitiveOrNull(closedWorld)) {
       return newBuiltinVariant(instruction, closedWorld);
     }
-    Iterable<Element> matches =
+    Iterable<MemberEntity> matches =
         closedWorld.allFunctions.filter(instruction.selector, instructionType);
     // This test relies the on `Object.==` and `Interceptor.==` always being
     // implemented because if the selector matches by subtype, it still will be
     // a regular object or an interceptor.
     if (matches
         .every(closedWorld.backendClasses.isDefaultEqualityImplementation)) {
       return newBuiltinVariant(instruction, closedWorld);
     }
     return null;
   }
@@ skipping 98 matching lines @@
       HInvokeDynamic instruction, Compiler compiler, ClosedWorld closedWorld) {
     HInstruction receiver = instruction.getDartReceiver(closedWorld);
     if (receiver.isNumberOrNull(closedWorld)) {
       // Even if there is no builtin equivalent instruction, we know the
       // instruction does not have any side effect, and that it can be GVN'ed.
       clearAllSideEffects(instruction);
     }
     return null;
   }
 }