Fix for crash because of missing type of default generic function typed parameters.

pkg/analyzer/test/src/dart/analysis/driver_test.dart

Index: pkg/analyzer/test/src/dart/analysis/driver_test.dart
diff --git a/pkg/analyzer/test/src/dart/analysis/driver_test.dart b/pkg/analyzer/test/src/dart/analysis/driver_test.dart
index 607401ec002dcfebe857d95aebc908383567524f..30c89f5762b536fc79654b89dbf370851631003d 100644
--- a/pkg/analyzer/test/src/dart/analysis/driver_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/driver_test.dart
@@ -1323,6 +1323,18 @@ class B {}
     expect(result.path, testFile);
   }
 
+  test_getResult_genericFunctionType_parameter_named() async {
+    String content = '''
+class C {
+  test({bool Function(String) p}) {}
+}
+''';
+    addTestFile(content, priority: true);
+
+    var result = await driver.getResult(testFile);
+    expect(result.errors, isEmpty);
+  }
+
   test_getResult_inferTypes_finalField() async {
     addTestFile(
         r'''