add support for native methods in class

pkg/analyzer/test/generated/parser_fasta_test.dart

Index: pkg/analyzer/test/generated/parser_fasta_test.dart
diff --git a/pkg/analyzer/test/generated/parser_fasta_test.dart b/pkg/analyzer/test/generated/parser_fasta_test.dart
index 3a04e869745bf61184842b431775bc95ae02a1ef..543b736c540d04c31fcd3f8852e150d085048c9d 100644
--- a/pkg/analyzer/test/generated/parser_fasta_test.dart
+++ b/pkg/analyzer/test/generated/parser_fasta_test.dart
@@ -62,6 +62,43 @@ class ClassMemberParserTest_Fasta extends FastaParserTestCase
     // TODO(paulberry): Fasta doesn't support asserts in initializers
     super.test_parseConstructor_assert();
   }
+
+  void test_parseClassMember_method_native_allowed() {
+    allowNativeClause = true;
+    test_parseClassMember_method_native();
+  }
+
+  void test_parseClassMember_method_native_not_allowed() {
+    allowNativeClause = false;
+    test_parseClassMember_method_native();
+  }
+
+  void test_parseClassMember_method_native_missing_literal() {
+    createParser('m() native;');
+    var method = parser.parseClassMember('C') as MethodDeclaration;
+    if (!allowNativeClause) {
+      assertErrorsWithCodes([
+        ParserErrorCode.NATIVE_CLAUSE_SHOULD_BE_ANNOTATION,
+      ]);
+    } else {
+      assertNoErrors();
+    }
+
+    var body = method.body as NativeFunctionBody;
+    expect(body.nativeKeyword, isNotNull);
+    expect(body.stringLiteral, isNull);
+    expect(body.semicolon, isNotNull);
+  }
+
+  void test_parseClassMember_method_native_missing_literal_allowed() {
+    allowNativeClause = true;
+    test_parseClassMember_method_native_missing_literal();
+  }
+
+  void test_parseClassMember_method_native_missing_literal_not_allowed() {
+    allowNativeClause = false;
+    test_parseClassMember_method_native_missing_literal();
+  }
 }
 
 /**