fasta parser test for analyzer error codes

pkg/analyzer/test/generated/parser_test.dart

Index: pkg/analyzer/test/generated/parser_test.dart
diff --git a/pkg/analyzer/test/generated/parser_test.dart b/pkg/analyzer/test/generated/parser_test.dart
index 8485b1ca26664ae5b3613dc4b06ec7b4da81a443..6eb0bfcf606957c62c5723a373c97397b4b9e7e6 100644
--- a/pkg/analyzer/test/generated/parser_test.dart
+++ b/pkg/analyzer/test/generated/parser_test.dart
@@ -56,6 +56,13 @@ abstract class AbstractParserTestCase implements ParserTestHelpers {
    */
   void set enableUriInPartOf(bool value);
 
+  /**
+   * The error listener to which scanner and parser errors will be reported.
+   *
+   * This field is typically initialized by invoking [createParser].
+   */
+  GatheringErrorListener get listener;
+
   /**
    * Get the parser used by the test.
    *
@@ -89,6 +96,8 @@ abstract class AbstractParserTestCase implements ParserTestHelpers {
    */
   void createParser(String content);
 
+  void expectNotNullIfNoErrors(Object result);
+
   Expression parseAdditiveExpression(String code);
 
   Expression parseAssignableExpression(String code, bool primaryAllowed);
@@ -2042,11 +2051,14 @@ void f() {
 }
 
 /**
- * The class `ErrorParserTest` defines parser tests that test the parsing of code to ensure
- * that errors are correctly reported, and in some cases, not reported.
+ * The class `ErrorParserTest` defines parser tests that test the parsing
+ * of code to ensure that errors are correctly reported,
+ * and in some cases, not reported.
  */
 @reflectiveTest
-class ErrorParserTest extends ParserTestCase {
+class ErrorParserTest extends ParserTestCase with ErrorParserTestMixin {}
+
+abstract class ErrorParserTestMixin implements AbstractParserTestCase {
   void test_abstractClassMember_constructor() {
     createParser('abstract C.c();');
     ClassMember member = parser.parseClassMember('C');
@@ -8306,11 +8318,7 @@ class ParserTestCase extends EngineTestCase
    */
   bool enableUriInPartOf = false;
 
-  /**
-   * The error listener to which scanner and parser errors will be reported.
-   *
-   * This field is typically initialized by invoking [createParser].
-   */
+  @override
   GatheringErrorListener listener;
 
   /**
@@ -8361,6 +8369,7 @@ class ParserTestCase extends EngineTestCase
     parser.currentToken = tokenStream;
   }
 
+  @override
   void expectNotNullIfNoErrors(Object result) {
     if (!listener.hasErrors) {
       expect(result, isNotNull);