Add operators test to source_mapping_test.

pkg/compiler/lib/src/cps_ir/cps_ir_nodes.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 dart2js.ir_nodes;
 
 import '../constants/values.dart' as values show ConstantValue;
 import '../dart_types.dart' show DartType, InterfaceType, TypeVariableType;
 import '../elements/elements.dart';
 import '../io/source_information.dart' show SourceInformation;
 import '../types/types.dart' show TypeMask;
@@ skipping 82 matching lines @@
   /// True if the primitive can be removed, assuming it has no uses
   /// (this getter does not check if there are any uses).
   ///
   /// False must be returned for primitives that may throw, diverge, or have
   /// observable side-effects.
   bool get isSafeForElimination;
 
   /// True if time-of-evaluation is irrelevant for the given primitive,
   /// assuming its inputs are the same values.
   bool get isSafeForReordering;
+
+  /// The source information associated with this primitive.
+  // TODO(johnniwinther): Require source information for all primitives.
+  SourceInformation get sourceInformation => null;
 }
 
 /// Operands to invocations and primitives are always variables.  They point to
 /// their definition and are doubly-linked into a list of occurrences.
 class Reference<T extends Definition<T>> {
   T definition;
   Reference<T> previous;
   Reference<T> next;
 
   /// A pointer to the parent node. Is null until set by optimization passes.
@@ skipping 205 matching lines @@
                [this.sourceInformation])
       : this.receiver = new Reference<Primitive>(receiver),
         this.arguments = _referenceList(arguments),
         this.continuation = new Reference<Continuation>(continuation);
 
   InvokeMethod.byReference(this.receiver,
                            this.selector,
                            this.mask,
                            this.arguments,
                            this.continuation,
-                           [this.sourceInformation]);
+                           this.sourceInformation);
 
   accept(Visitor visitor) => visitor.visitInvokeMethod(this);
 }
 
 /// Invoke [target] on [receiver], bypassing dispatch and override semantics.
 ///
 /// That is, if [receiver] is an instance of a class that overrides [target]
 /// with a different implementation, the overriding implementation is bypassed
 /// and [target]'s implementation is invoked.
 ///
@@ skipping 130 matching lines @@
 
   accept(Visitor visitor) => visitor.visitTypeCast(this);
 }
 
 /// Apply a built-in operator.
 ///
 /// It must be known that the arguments have the proper types.
 class ApplyBuiltinOperator extends Primitive {
   BuiltinOperator operator;
   List<Reference<Primitive>> arguments;
+  final SourceInformation sourceInformation;
 
-  ApplyBuiltinOperator(this.operator, List<Primitive> arguments)
+  ApplyBuiltinOperator(this.operator,
+                       List<Primitive> arguments,
+                       this.sourceInformation)
       : this.arguments = _referenceList(arguments);
 
   accept(Visitor visitor) => visitor.visitApplyBuiltinOperator(this);
 
   bool get isSafeForElimination => true;
   bool get isSafeForReordering => true;
 }
 
 /// Throw a value.
 ///
@@ skipping 335 matching lines @@
 
   accept(Visitor visitor) => visitor.visitCreateInstance(this);
 
   bool get isSafeForElimination => true;
   bool get isSafeForReordering => true;
 }
 
 class Interceptor extends Primitive {
   final Reference<Primitive> input;
   final Set<ClassElement> interceptedClasses;
-  Interceptor(Primitive input, this.interceptedClasses)
+  final SourceInformation sourceInformation;
+
+  Interceptor(Primitive input, this.interceptedClasses, this.sourceInformation)
       : this.input = new Reference<Primitive>(input);
   accept(Visitor visitor) => visitor.visitInterceptor(this);
 
   bool get isSafeForElimination => true;
   bool get isSafeForReordering => true;
 }
 
 /// Create an instance of [Invocation] for use in a call to `noSuchMethod`.
 class CreateInvocationMirror extends Primitive {
   final Selector selector;
@@ skipping 608 matching lines @@
   const RemovalVisitor();
 
   processReference(Reference reference) {
     reference.unlink();
   }
 
   static void remove(Node node) {
     (const RemovalVisitor()).visit(node);
   }
 }