More equivalence testing

pkg/compiler/lib/src/js_emitter/model.dart

Index: pkg/compiler/lib/src/js_emitter/model.dart
diff --git a/pkg/compiler/lib/src/js_emitter/model.dart b/pkg/compiler/lib/src/js_emitter/model.dart
index 9692ef13bd5fe606c3f7ce096c030208b7ef834f..e95654a5268bddd759f5d4730e535e227fb3ff6c 100644
--- a/pkg/compiler/lib/src/js_emitter/model.dart
+++ b/pkg/compiler/lib/src/js_emitter/model.dart
@@ -89,6 +89,10 @@ class Holder {
 
   Holder(this.name, this.index,
       {this.isStaticStateHolder: false, this.isConstantsHolder: false});
+
+  String toString() {
+    return 'Holder(name=${name})';
+  }
 }
 
 /**
@@ -144,6 +148,10 @@ class MainFragment extends Fragment {
             staticLazilyInitializedFields, constants);
 
   bool get isMainFragment => true;
+
+  String toString() {
+    return 'MainFragment()';
+  }
 }
 
 /**
@@ -164,6 +172,10 @@ class DeferredFragment extends Fragment {
             staticLazilyInitializedFields, constants);
 
   bool get isMainFragment => false;
+
+  String toString() {
+    return 'DeferredFragment(name=${name})';
+  }
 }
 
 class Constant {
@@ -172,6 +184,10 @@ class Constant {
   final ConstantValue value;
 
   Constant(this.name, this.holder, this.value);
+
+  String toString() {
+    return 'Constant(name=${name},value=${value.toStructuredText()})';
+  }
 }
 
 abstract class FieldContainer {
@@ -191,6 +207,10 @@ class Library implements FieldContainer {
 
   Library(this.element, this.uri, this.statics, this.classes,
       this.staticFieldsForReflection);
+
+  String toString() {
+    return 'Library(uri=${uri},element=${element})';
+  }
 }
 
 class StaticField {
@@ -208,6 +228,10 @@ class StaticField {
 
   StaticField(this.element, this.name, this.holder, this.code, this.isFinal,
       this.isLazy);
+
+  String toString() {
+    return 'StaticField(name=${name},element=${element})';
+  }
 }
 
 class Class implements FieldContainer {
@@ -292,7 +316,7 @@ class Class implements FieldContainer {
   int get superclassHolderIndex =>
       (superclass == null) ? 0 : superclass.holder.index;
 
-  String toString() => 'Class(${element.name})';
+  String toString() => 'Class(name=${name},element=$element)';
 }
 
 class MixinApplication extends Class {
@@ -335,6 +359,8 @@ class MixinApplication extends Class {
   void setMixinClass(Class mixinClass) {
     _mixinClass = mixinClass;
   }
+
+  String toString() => 'Mixin(name=${name},element=$element)';
 }
 
 /// A field.
@@ -378,6 +404,10 @@ class Field {
 
   bool get needsInterceptedGetterOnThis => getterFlags == 3;
   bool get needsInterceptedSetterOnThis => setterFlags == 3;
+
+  String toString() {
+    return 'Field(name=${name},element=${element})';
+  }
 }
 
 abstract class Method {
@@ -392,11 +422,6 @@ abstract class Method {
   final js.Expression code;
 
   Method(this.element, this.name, this.code);
-
-  String toString() {
-    return 'method[name=${name},element=${element}'
-        ',code=${js.nodeToString(code)}]';
-  }
 }
 
 /// A method that corresponds to a method in the original Dart program.
@@ -481,6 +506,11 @@ class InstanceMethod extends DartMethod {
   }
 
   bool get isStatic => false;
+
+  String toString() {
+    return 'InstanceMethod(name=${name},element=${element}'
+        ',code=${js.nodeToString(code)})';
+  }
 }
 
 /// A method that is generated by the backend and has not direct correspondence
@@ -491,7 +521,8 @@ class StubMethod extends Method {
       : super(element, name, code);
 
   String toString() {
-    return 'stub[name=${name},element=${element},code=${js.nodeToString(code)}]';
+    return 'StubMethod(name=${name},element=${element}'
+        ',code=${js.nodeToString(code)})';
   }
 }
 
@@ -514,6 +545,11 @@ class ParameterStubMethod extends StubMethod {
 
   ParameterStubMethod(js.Name name, this.callName, js.Expression code)
       : super(name, code);
+
+  String toString() {
+    return 'ParameterStubMethod(name=${name},element=${element}'
+        ',code=${js.nodeToString(code)})';
+  }
 }
 
 abstract class StaticMethod implements Method {
@@ -549,7 +585,8 @@ class StaticDartMethod extends DartMethod implements StaticMethod {
   bool get isStatic => true;
 
   String toString() {
-    return 'static_method[name=${name},element=${element}}]';
+    return 'StaticDartMethod(name=${name},element=${element}'
+        ',code=${js.nodeToString(code)})';
   }
 }
 
@@ -557,4 +594,9 @@ class StaticStubMethod extends StubMethod implements StaticMethod {
   Holder holder;
   StaticStubMethod(js.Name name, this.holder, js.Expression code)
       : super(name, code);
+
+  String toString() {
+    return 'StaticStubMethod(name=${name},element=${element}}'
+        ',code=${js.nodeToString(code)})';
+  }
 }