Fix a bug parsing generic methods

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 dcd11cb5836a7f7416d1b3dc71f3e83b88ecb509..42e49e4f43249f3ee09f88ed5254f49113ff6362 100644
--- a/pkg/analyzer/test/generated/parser_test.dart
+++ b/pkg/analyzer/test/generated/parser_test.dart
@@ -6954,6 +6954,14 @@ void''');
     expect(declaration.propertyKeyword, isNull);
   }
 
+  void test_parseCompilationUnitMember_function_withTypeParameters() {
+    enableGenericMethods = true;
+    FunctionDeclaration declaration = parse("parseCompilationUnitMember",
+        <Object>[emptyCommentAndMetadata()], "void f<T>(T t) {}");
+    expect(declaration.functionExpression, isNotNull);
+    expect(declaration.propertyKeyword, isNull);
+  }
+
   void test_parseCompilationUnitMember_function_void() {
     FunctionDeclaration declaration = parse("parseCompilationUnitMember",
         <Object>[emptyCommentAndMetadata()], "void f() {}");