Improve code generation for 'bottom' and 'dynamic' arguments.

pkg/analysis_server/test/services/correction/fix_test.dart

Index: pkg/analysis_server/test/services/correction/fix_test.dart
diff --git a/pkg/analysis_server/test/services/correction/fix_test.dart b/pkg/analysis_server/test/services/correction/fix_test.dart
index 9e33386efc5f7405bc9a2f13ba4bc4b408374f2a..efb85c3225e77554f062065f1ad16dc581fcacb7 100644
--- a/pkg/analysis_server/test/services/correction/fix_test.dart
+++ b/pkg/analysis_server/test/services/correction/fix_test.dart
@@ -2182,6 +2182,40 @@ main() {
 ''');
   }
 
+  void test_undefinedFunction_create_dynamicArgument() {
+    _indexTestUnit('''
+main() {
+  dynamic v;
+  test(v);
+}
+''');
+    assertHasFix(FixKind.CREATE_FUNCTION, '''
+main() {
+  dynamic v;
+  test(v);
+}
+
+void test(v) {
+}
+''');
+  }
+
+  void test_undefinedFunction_create_dynamicReturnType() {
+    _indexTestUnit('''
+main() {
+  dynamic v = test();
+}
+''');
+    assertHasFix(FixKind.CREATE_FUNCTION, '''
+main() {
+  dynamic v = test();
+}
+
+test() {
+}
+''');
+  }
+
   void test_undefinedFunction_create_fromFunction() {
     _indexTestUnit('''
 main() {
@@ -2262,6 +2296,22 @@ void process(List<int> items) {
 ''');
   }
 
+  void test_undefinedFunction_create_nullArgument() {
+    _indexTestUnit('''
+main() {
+  test(null);
+}
+''');
+    assertHasFix(FixKind.CREATE_FUNCTION, '''
+main() {
+  test(null);
+}
+
+void test(arg0) {
+}
+''');
+  }
+
   void test_undefinedFunction_create_returnType_bool_expressions() {
     assert_undefinedFunction_create_returnType_bool("!test();");
     assert_undefinedFunction_create_returnType_bool("b && test();");