#1586. Remove CyclicInitializationError from co19 tests

Language/Variables/Evaluation_of_Implicit_Variable_Getters/definition_t02.dart

@@ -37,10 +37,10 @@
 /// and does not cause an error.
 ///
 /// @description Checks that if during the evaluation of [e], the getter for [v]
-/// is invoked, a [CyclicInitializationError] is not thrown. Confirms that [func]
-/// gets recursively called by incrementing a counter and stopping the infinite
-/// recursion after 20 cycles. This avoids relying on particulars of the behavior
-/// on stack overflow and makes the test cheaper to run.
+/// is invoked, an error is not thrown. Confirms that [func] gets recursively
+/// called by incrementing a counter and stopping the infinite recursion after
+/// 20 cycles. This avoids relying on particulars of the behavior on stack
+/// overflow and makes the test cheaper to run.
 /// @author msyabro
 /// @Issue 42470
 /// @issue 42642

Language/Variables/Evaluation_of_Implicit_Variable_Getters/definition_t05.dart

@@ -34,8 +34,8 @@
 /// Reading the variable during initializer evaluation is no longer checked for,
 /// and does not cause an error.
 ///
-/// @description Checks that CyclicInitializationError is not thrown when getter
-/// is referenced during evaluation of initialization expression.
+/// @description Checks that an error is not thrown when getter is referenced
+/// during evaluation of initialization expression.
 /// @author kaigorodov
 /// @Issue 42470
 /// @issue 42642

Language/Variables/Evaluation_of_Implicit_Variable_Getters/definition_t06.dart

@@ -39,9 +39,8 @@
 /// expression, and both variables just get initialized to the value [null]. No
 /// recursion and no errors.
 ///
-/// @description Checks that [CyclicInitializationError] is not thrown with null
-/// safety turned on.
-///
+/// @description Checks that an error is not thrown with the null safety turned
+/// on.
 /// @author [email protected]
 /// @issue 46086