diff --git a/Language/Mixins/Mixin_Application/implicit_constructor_A03_t05.dart b/Language/Mixins/Mixin_Application/implicit_constructor_A03_t05.dart
index 5de9228dfe..13789c51a2 100644
--- a/Language/Mixins/Mixin_Application/implicit_constructor_A03_t05.dart
+++ b/Language/Mixins/Mixin_Application/implicit_constructor_A03_t05.dart
@@ -19,6 +19,7 @@
 ///     superq(a1, ... , ak, ak+1, ..., ap);. Test that it is a compile-time
 /// error if required named parameter is not specified
 /// @author sgrekhov22@gmail.com
+/// @issue 52872
 
 class A {
   bool v1;
diff --git a/LibTest/convert/JsonEncoder/JsonEncoder.withIndent_A01_t01.dart b/LibTest/convert/JsonEncoder/JsonEncoder.withIndent_A01_t01.dart
index a8e1a16ba5..08ed49c141 100644
--- a/LibTest/convert/JsonEncoder/JsonEncoder.withIndent_A01_t01.dart
+++ b/LibTest/convert/JsonEncoder/JsonEncoder.withIndent_A01_t01.dart
@@ -2,12 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-/// @assertionconst JsonEncoder.withIndent(
-///  String indent, [
-///  dynamic toEncodable(
-///  nonSerializable
-///  )
-///  ])
+/// @assertion const JsonEncoder.withIndent(
+///   String indent, [dynamic toEncodable(nonSerializable)])
 /// Creates a JSON encoder that creates multi-line JSON.
 /// The encoding of elements of lists and maps are indented and put on separate
 /// lines. The indent string is prepended to these elements, once for each level
@@ -22,6 +18,7 @@
 /// of one of the convertible types.
 ///
 /// If toEncodable is omitted, it defaults to calling .toJson() on the object.
+///
 /// @description Checks that this constructor, called with null indent parameter,
 /// and no toEncodable creates object with default toEncodable
 /// @author sgrekhov@unipro.ru
diff --git a/LibTest/convert/JsonEncoder/JsonEncoder.withIndent_A01_t02.dart b/LibTest/convert/JsonEncoder/JsonEncoder.withIndent_A01_t02.dart
index 15695c731b..fc8380c472 100644
--- a/LibTest/convert/JsonEncoder/JsonEncoder.withIndent_A01_t02.dart
+++ b/LibTest/convert/JsonEncoder/JsonEncoder.withIndent_A01_t02.dart
@@ -2,12 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-/// @assertionconst JsonEncoder.withIndent(
-///  String indent, [
-///  dynamic toEncodable(
-///  nonSerializable
-///  )
-///  ])
+/// @assertion const JsonEncoder.withIndent(
+///   String indent, [dynamic toEncodable(nonSerializable)])
 /// Creates a JSON encoder that creates multi-line JSON.
 /// The encoding of elements of lists and maps are indented and put on separate
 /// lines. The indent string is prepended to these elements, once for each level
@@ -22,6 +18,7 @@
 /// of one of the convertible types.
 ///
 /// If toEncodable is omitted, it defaults to calling .toJson() on the object.
+///
 /// @description Checks that this constructor, called with not null indent
 /// parameter, and no toEncodable creates a JSON encoder that creates multi-line
 /// JSON.
diff --git a/LibTest/convert/JsonEncoder/JsonEncoder.withIndent_A01_t03.dart b/LibTest/convert/JsonEncoder/JsonEncoder.withIndent_A01_t03.dart
index d4f61b56c5..2d384ff9f7 100644
--- a/LibTest/convert/JsonEncoder/JsonEncoder.withIndent_A01_t03.dart
+++ b/LibTest/convert/JsonEncoder/JsonEncoder.withIndent_A01_t03.dart
@@ -2,12 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-/// @assertionconst JsonEncoder.withIndent(
-///  String indent, [
-///  dynamic toEncodable(
-///  nonSerializable
-///  )
-///  ])
+/// @assertion const JsonEncoder.withIndent(
+///   String indent, [dynamic toEncodable(nonSerializable)])
 /// Creates a JSON encoder that creates multi-line JSON.
 /// The encoding of elements of lists and maps are indented and put on separate
 /// lines. The indent string is prepended to these elements, once for each level
@@ -22,6 +18,7 @@
 /// of one of the convertible types.
 ///
 /// If toEncodable is omitted, it defaults to calling .toJson() on the object.
+///
 /// @description Checks that this constructor, called with not null indent
 /// parameter and toEncodable creates a JSON encoder that creates multi-line
 /// JSON.