dart2js cps: Remove dart2dart from cps pipeline and clean up.

pkg/compiler/lib/src/cps_ir/cps_ir_nodes_sexpr.dart

Index: pkg/compiler/lib/src/cps_ir/cps_ir_nodes_sexpr.dart
diff --git a/pkg/compiler/lib/src/cps_ir/cps_ir_nodes_sexpr.dart b/pkg/compiler/lib/src/cps_ir/cps_ir_nodes_sexpr.dart
index 2d5294beb2006ee91d10bf77729bd49975cbb54c..b4bbcdc76c52a7d16ec56c9550abf0893c320101 100644
--- a/pkg/compiler/lib/src/cps_ir/cps_ir_nodes_sexpr.dart
+++ b/pkg/compiler/lib/src/cps_ir/cps_ir_nodes_sexpr.dart
@@ -54,68 +54,13 @@ class SExpressionStringifier extends Indentation implements Visitor<String> {
     String name = node.element.name;
     String thisParameter = formatThisParameter(node.thisParameter);
     String parameters = node.parameters.map(visit).join(' ');
-    String body = visit(node.body);
+    namer.setReturnContinuation(node.returnContinuation);
+    String body = indentBlock(() => visit(node.body));
     return '$indentation'
         '(FunctionDefinition $name $thisParameter ($parameters) return\n'
         '$body)';
   }
 
-  String visitFieldDefinition(FieldDefinition node) {
-    String name = node.element.name;
-    if (node.body != null) {
-      String body = visit(node.body);
-      return '$indentation(FieldDefinition $name () return\n'
-             '$body)';
-    } else {
-      return '$indentation(FieldDefinition $name)';
-    }
-  }
-
-  String visitConstructorDefinition(ConstructorDefinition node) {
-    String name = node.element.name;
-    if (name != '') name = '$name ';
-    String thisParameter = formatThisParameter(node.thisParameter);
-    String parameters = node.parameters.map(visit).join(' ');
-    if (node.body != null) {
-      String initializers = indentBlock(() {
-        return indentBlock(() {
-          if (node.initializers.isEmpty) {
-            return '$indentation';
-          } else {
-            return node.initializers.map(visit).join('\n');
-          }
-        });
-      });
-      String body = visit(node.body);
-      return '$indentation'
-          '(ConstructorDefinition $name$thisParameter ($parameters) return'
-          ' (\n$initializers)\n$body)';
-    } else {
-      return '$indentation'
-          '(ConstructorDefinition $name$thisParameter ($parameters) return)';
-    }
-  }
-
-  String visitFieldInitializer(FieldInitializer node) {
-    String name = node.element.name;
-    String body = visit(node.body);
-    return '$indentation(FieldInitializer $name\n$body)';
-  }
-
-  String visitSuperInitializer(SuperInitializer node) {
-    String target = node.target.name;
-    String selector = node.selector.name;
-    String arguments =
-        indentBlock(() =>
-          indentBlock(() => node.arguments.map(visit).join('\n')));
-    return '$indentation(SuperInitializer $target $selector (\n$arguments)';
-  }
-
-  String visitBody(Body node) {
-    namer.setReturnContinuation(node.returnContinuation);
-    return indentBlock(() => visit(node.body));
-  }
-
   String visitLetPrim(LetPrim node) {
     String name = newValueName(node.primitive);
     String value = visit(node.primitive);
@@ -263,10 +208,6 @@ class SExpressionStringifier extends Indentation implements Visitor<String> {
     return '(Constant $value)';
   }
 
-  String visitReifyTypeVar(ReifyTypeVar node) {
-    return '$indentation(ReifyTypeVar ${node.typeVariable.name})';
-  }
-
   String visitCreateFunction(CreateFunction node) {
     String function =
         indentBlock(() => indentBlock(() => visit(node.definition)));
@@ -309,15 +250,6 @@ class SExpressionStringifier extends Indentation implements Visitor<String> {
     return '(LiteralMap ($keys) ($values))';
   }
 
-  String visitDeclareFunction(DeclareFunction node) {
-    String name = visit(node.variable);
-    String function = indentBlock(() => visit(node.definition));
-    String body = indentBlock(() => visit(node.body));
-    return '$indentation(DeclareFunction $name =\n'
-           '$function in\n'
-           '$body)';
-  }
-
   String visitIsTrue(IsTrue node) {
     String value = access(node.value);
     return '(IsTrue $value)';