RegExp is const, really.

dart/tests/co19/co19-leg.status

 # Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 # 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.
 
 [ $component == leg && $system == macos ]
 LibTest/core/Math/acos_A01_t01: Fail, OK
 LibTest/core/Math/asin_A01_t01: Fail, OK
 LibTest/core/Math/atan_A01_t01: Fail, OK
 
 
@@ skipping 17 matching lines @@
 # Leg does not support checked mode yet.
 *: Skip
 
 
 [ $component == legium ]
 *: Skip
 
 
 [ $component == leg ]
 # Issues with co19 test suite.
-Language/11_Statements/11_Labels_A01_t03: Fail, OK # Test doesn't follow spec.
 Language/10_Expressions/07_Maps_A01_t01: Fail, OK # Bad test: an expression statement cannot start with a map literal (specification bug).
 Language/10_Expressions/08_Function_Expressions_A01_t05: Fail, OK # Function declaration takes precedence over function expression.
 Language/10_Expressions/19_Bitwise_Expressions_A01_t01: Fail, OK # Function declaration takes precedence over function expression.
 Language/10_Expressions/20_Equality_A01_t01: Fail, OK # Function declaration takes precedence over function expression.
 Language/10_Expressions/21_Relational_Expressions_A01_t01: Fail, OK # Function declaration takes precedence over function expression.
 Language/10_Expressions/22_Shift_A01_t01: Fail, OK # Function declaration takes precedence over function expression.
 Language/11_Statements/02_Expression_Statements_A01_t05: Fail, OK # Bad test: an expression statement cannot start with a map literal (specification bug).
 Language/11_Statements/02_Expression_Statements_A01_t07: Fail, OK # Bad test: an expression statement cannot start with a map literal (specification bug).
 Language/11_Statements/09_Try_A02_t04: Fail, OK # Bad test: Unbalanced {.
 Language/11_Statements/10_Return_A02_t01: Fail, OK # co19 issue 87.
+Language/11_Statements/11_Labels_A01_t03: Fail, OK # Test doesn't follow spec.
 LibTest/core/Date/Date.fromString_A01_t02: Fail, OK # co19 issue 88.
 LibTest/core/Date/Date.fromString_A01_t04: Fail, OK # co19 issue 88.
 LibTest/core/Date/Date_A01_t01: Fail, OK # Generates bad date and expect exact print string.
 LibTest/core/Date/year_A01_t01: Fail, OK # Requires big int.
 LibTest/core/List/sort_A01_t02: Fail, OK # No method List.copyFrom.
 LibTest/core/List/sort_A01_t03: Fail, OK # No method List.copyFrom.
 LibTest/core/Match/group_A01_t01: Fail, OK # co19 issue 92.
 LibTest/core/Match/groups_A01_t01: Fail, OK # co19 issue 92.
 LibTest/core/Match/operator_subscript_A01_t01: Fail, OK # co19 issue 92.
 LibTest/core/Match/pattern_A01_t01: Fail, OK # Bad test, allMatches return an Iterable.
 LibTest/core/Match/str_A01_t01: Fail, OK # Bad test, allMatches return an Iterable.
 LibTest/core/Math/exp_A01_t01: Fail, OK # TODO(floitsch): Review.
 LibTest/core/Math/pow_A01_t01: Fail, OK # Bad test (uses x.pow(y), not Math.pow(x, y)).
 LibTest/core/Math/pow_A11_t01: Fail, OK # TODO(floitsch): Review.
 LibTest/core/Math/pow_A13_t01: Fail, OK # TODO(floitsch): Review.
 LibTest/core/Math/sin_A01_t01: Fail, OK # TODO(floitsch): Review.
 LibTest/core/Math/tan_A01_t01: Fail, OK # TODO(floitsch): Review.
 LibTest/core/RegExp/Pattern_semantics/firstMatch_AtomEscape_A01_t01: Fail, OK # co19 issue 92.
 LibTest/core/RegExp/Pattern_semantics/firstMatch_Atom_A01_t01: Fail, OK # co19 issue 92.
 LibTest/core/RegExp/Pattern_semantics/firstMatch_Atom_A02_t01: Fail, OK # co19 issue 92.
 LibTest/core/RegExp/Pattern_semantics/firstMatch_Atom_A03_t01: Fail, OK # co19 issue 92.
 LibTest/core/RegExp/Pattern_semantics/firstMatch_Disjunction_A01_t01: Fail, OK # co19 issue 92.
 LibTest/core/RegExp/Pattern_semantics/firstMatch_NonEmptyClassRanges_A01_t01: Fail, OK # This is not rejected by V8.
 LibTest/core/RegExp/Pattern_semantics/firstMatch_Quantifier_A03_t01: Fail, OK # co19 issue 92.
 LibTest/core/RegExp/Pattern_semantics/firstMatch_Term_A03_t01: Fail, OK # co19 issue 92.
 LibTest/core/RegExp/Pattern_semantics/firstMatch_Term_A04_t01: Fail, OK # co19 issue 92.
+LibTest/core/RegExp/RegExp_A01_t03: Fail, OK # Expects exception from const constructor.
+LibTest/core/RegExp/RegExp_A01_t04: Fail, OK # Expects exception from const constructor.
 LibTest/core/RegExp/allMatches_A01_t01: Fail, OK #  Bad test, allMatches return an Iterable.
 LibTest/core/RegExp/firstMatch_A01_t01: Fail, OK # Bad test, use Match.regexp, not Match.pattern.
 LibTest/core/String/hashCode_A01_t01: Fail, OK # Bad test closurizes hashCode.
 LibTest/core/double/toInt_A01_t01: Fail, OK # Requires big int.
 LibTest/core/double/toInt_A01_t02: Fail, OK # Requires big int.
 LibTest/core/double/toInt_A01_t05: Fail, OK # Requires big int.
 LibTest/core/double/toRadixString_A01_t01: Fail, OK # Unimplemented test stub.
 LibTest/core/double/toStringAsExponential_A01_t01: Fail, OK # Unimplemented test stub.
 LibTest/core/double/toStringAsPrecision_A01_t01: Fail, OK # Unimplemented test stub.
 LibTest/core/int/compareTo_A01_t01: Fail, OK # Requires big int.
@@ skipping 452 matching lines @@
 Language/11_Statements/10_Return_A04_t02: Fail, OK # @compile-error
 Language/11_Statements/10_Return_A04_t03: Fail, OK # @compile-error
 Language/11_Statements/15_Assert_A01_t05: Fail, OK # @compile-error
 Language/13_Types/1_Static_Types_A02_t08: Fail, OK # @compile-error
 Language/13_Types/3_Type_Declarations/1_Typedef_A06_t01: Fail, OK # @compile-error
 Language/13_Types/3_Type_Declarations/1_Typedef_A06_t02: Fail, OK # @compile-error
 Language/13_Types/3_Type_Declarations/1_Typedef_A06_t03: Fail, OK # @compile-error
 Language/13_Types/3_Type_Declarations/1_Typedef_A06_t04: Fail, OK # @compile-error
 Language/13_Types/7_Type_Void_A01_t02: Fail, OK # @compile-error
 Language/13_Types/7_Type_Void_A01_t09: Fail, OK # @compile-error