Check for abstract method with body and top-level abstract elements, issue 871

compiler/java/com/google/dart/compiler/parser/ParserErrorCode.java

Index: compiler/java/com/google/dart/compiler/parser/ParserErrorCode.java
diff --git a/compiler/java/com/google/dart/compiler/parser/ParserErrorCode.java b/compiler/java/com/google/dart/compiler/parser/ParserErrorCode.java
index 7207226f74d1d915453e71880f93b6196d35fad8..300c25e59819b85a6970aa871632752b4884bb85 100644
--- a/compiler/java/com/google/dart/compiler/parser/ParserErrorCode.java
+++ b/compiler/java/com/google/dart/compiler/parser/ParserErrorCode.java
@@ -12,6 +12,8 @@ import com.google.dart.compiler.SubSystem;
  */
 public enum ParserErrorCode implements ErrorCode {
   ABSTRACT_MEMBER_IN_INTERFACE("Abstract members are not allowed in interfaces"),
+  ABSTRACT_METHOD_WITH_BODY("Abstract method can not have a body"),
+  ABSTRACT_TOP_LEVEL_ELEMENT("Only class can be abstract top-level element"),
   CATCH_OR_FINALLY_EXPECTED("catch or finally clause expected."),
   DEFAULT_VALUE_CAN_NOT_BE_SPECIFIED_IN_ABSTRACT(
       "Default values can not be specified in abstract method"),