Update co19 status for issue 26644

tests/co19/co19-dart2js.status

Index: tests/co19/co19-dart2js.status
diff --git a/tests/co19/co19-dart2js.status b/tests/co19/co19-dart2js.status
index 9b12bb577e0163382b16eae045b140fe4e434f8b..0efacab0b8f4880e686b66584df27d714b8127d9 100644
--- a/tests/co19/co19-dart2js.status
+++ b/tests/co19/co19-dart2js.status
@@ -3,15 +3,7 @@
 # BSD-style license that can be found in the LICENSE file.
 
 [ $compiler == dart2js ]
-# Trailing commas are now allowed by the language - issue #26644
-Language/Functions/Formal_Parameters/syntax_t12: MissingCompileTimeError
-Language/Functions/Formal_Parameters/syntax_t05: MissingCompileTimeError
-Language/Functions/Formal_Parameters/syntax_t04: MissingCompileTimeError
-Language/Expressions/Function_Invocation/Actual_Argument_List_Evaluation/syntax_t05: MissingCompileTimeError
-Language/Expressions/Method_Invocation/Ordinary_Invocation/syntax_t05: MissingCompileTimeError
-Language/Expressions/Method_Invocation/Ordinary_Invocation/syntax_t10: MissingCompileTimeError
-Language/Expressions/Method_Invocation/Super_Invocation/syntax_t05: MissingCompileTimeError
-# End of issue 26644
+Language/Functions/Formal_Parameters/syntax_t05: RuntimeError # Issue 26644
 
 Language/Classes/Constructors/Generative_Constructors/execution_of_a_superinitializer_t01: RuntimeError # compiler cancelled: cannot resolve type T
 Language/Classes/Constructors/Generative_Constructors/execution_of_a_superinitializer_t01: RuntimeError, OK # co19 issue 258