Using 'interface' and 'abstract' for methods should produce error

compiler/java/com/google/dart/compiler/resolver/ResolverErrorCode.java

 // Copyright (c) 2012, 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.
 package com.google.dart.compiler.resolver;
 
 import com.google.dart.compiler.ErrorCode;
 import com.google.dart.compiler.ErrorSeverity;
 import com.google.dart.compiler.SubSystem;
 
 /**
@@ skipping 39 matching lines @@
       "super type %s does not have a default constructor"),
   CANNOT_USE_INSTANCE_FIELD_IN_INSTANCE_FIELD_INITIALIZER(
       "Cannot use instance field in instance field initializer"),
   CANNOT_USE_THIS_IN_INSTANCE_FIELD_INITIALIZER("Cannot use 'this' in instance field initializer"),
   CANNOT_USE_TYPE("Cannot reference the type '%s' in this context"),
   // TODO(zundel): error message needs JUnit test (reachable code?)
   CANNOT_USE_TYPE_VARIABLE("Cannot reference the type variable '%s' in this context"),
   CIRCULAR_REFERENCE(
       "Circular reference detected:  compile-time constants cannot reference themselves."),
   CONST_REQUIRES_VALUE("Constant fields must have an initial value"),
-  CONSTRUCTOR_CANNOT_BE_ABSTRACT("A constructor cannot be abstract"),
   CONSTRUCTOR_CANNOT_BE_STATIC("A constructor cannot be static"),
   CONSTRUCTOR_CANNOT_HAVE_RETURN_TYPE("Generative constructors cannot have return type"),
   CONST_AND_NONCONST_CONSTRUCTOR("Cannot reference to non-const constructor."),
   CONST_ARRAY_WITH_TYPE_VARIABLE("Const array literals cannot have a type variable as a type argument"),
   CONST_CLASS_WITH_INHERITED_NONFINAL_FIELDS(
       "Const class %s cannot have non-final, inherited field %s from class %s"),
   CONST_CLASS_WITH_NONFINAL_FIELDS("Const class %s cannot have non-final field %s"),
   CONST_CONSTRUCTOR_CANNOT_HAVE_BODY("A const constructor cannot have a body"),
   CONST_CONSTRUCTOR_MUST_CALL_CONST_SUPER("const constructor must call const super constructor"),
   CONST_MAP_WITH_TYPE_VARIABLE("Const map literals cannot have a type variable as a type argument"),
@@ skipping 45 matching lines @@
   FACTORY_CANNOT_BE_CONST("A factory cannot be const"),
   FIELD_DOES_NOT_HAVE_A_GETTER(ErrorSeverity.WARNING, "Field does not have a getter"),
   FIELD_DOES_NOT_HAVE_A_SETTER(ErrorSeverity.WARNING, "Field does not have a setter"),
   FIELD_GETTER_SETTER_SAME_STATIC("Field's getter and setter should be both static or not static"),
   FINAL_FIELD_MUST_BE_INITIALIZED("The final field %s must be initialized"),
   FORMAL_PARAMETER_NAME_EXPECTED("Formal parameter name expected"),
   // TODO(zundel): error message needs JUnit test - how to test #imports in junit?
   ILLEGAL_ACCESS_TO_PRIVATE("'%s' is private and not defined in this library"),
   // TODO(zundel): error message needs JUnit test - how to test #imports in junit?
   ILLEGAL_ACCESS_TO_PRIVATE_MEMBER("\"%s\" refers to \"%s\" which is in a different library"),
-  ILLEGAL_CONSTRUCTOR_NO_DEFAULT_IN_INTERFACE(
-      "Illegal constructor declaration.  No default clause in interface"),
   ILLEGAL_FIELD_ACCESS_FROM_STATIC("Illegal access of instance field %s from static scope"),
   ILLEGAL_METHOD_ACCESS_FROM_STATIC("Illegal access of instance method %s from static scope"),
   INIT_FIELD_ONLY_IMMEDIATELY_SURROUNDING_CLASS(
       "Only fields of immediately surrounding class can be initialized"),
   INSTANCE_METHOD_FROM_INITIALIZER("Instance methods cannot be referenced from constructor initializer"),
   INSTANCE_METHOD_FROM_REDIRECT("Instance methods cannot be referenced from constructor redirects"),
   INSTANCE_METHOD_FROM_STATIC("Instance methods cannot be referenced from static methods"),
   INTERNAL_ERROR("internal error: %s"),
   INVALID_OVERRIDE_METADATA(ErrorSeverity.WARNING, "Method marked with @override, but does not override any superclass element"),
   INVALID_RETURN_IN_CONSTRUCTOR("Generative constructors cannot return arbitrary expressions"),
@@ skipping 105 matching lines @@
   @Override
   public SubSystem getSubSystem() {
     return SubSystem.RESOLVER;
   }
 
   @Override
   public boolean needsRecompilation() {
     return true;
   }
 }