Generate tear-off closures dynamically.

dart/tests/co19/co19-dart2js.status

Index: dart/tests/co19/co19-dart2js.status
diff --git a/dart/tests/co19/co19-dart2js.status b/dart/tests/co19/co19-dart2js.status
index c4e478cb6487911103df5677be255bb20911dc16..e2e1e3de12bd8b6b3d77a0e9b975d2afb13670ca 100644
--- a/dart/tests/co19/co19-dart2js.status
+++ b/dart/tests/co19/co19-dart2js.status
@@ -128,6 +128,8 @@ Language/07_Classes/6_Constructors/1_Generative_Constructors_A17_t03: Fail # TOD
 Language/15_Types/2_Dynamic_Type_System_A01_t02: RuntimeError # co19-roll r607: Please triage this failure
 Language/15_Types/8_Parameterized_Types_A03_t07: RuntimeError # co19-roll r607: Please triage this failure
 Language/15_Types/1_Static_Types_A03_t01: RuntimeError # co19-roll r623: Please triage this failure
+LibTest/core/Map/Map_class_A01_t04: Slow, Pass
+LibTest/core/Uri/Uri_A06_t03: Slow, Pass
 
 
 [ $compiler == dart2js ]
@@ -522,7 +524,7 @@ LibTest/typed_data/Uint8List/Uint8List.view_A05_t01: RuntimeError # co19-roll r5
 LibTest/typed_data/Uint8List/Uint8List.view_A05_t02: RuntimeError # co19-roll r559: Please triage this failure
 LibTest/typed_data/Uint8List/Uint8List.view_A05_t03: RuntimeError # co19-roll r559: Please triage this failure
 Utils/tests/Expect/identical_A01_t01: fail # co19-roll r546: Please triage this failure
-Language/12_Expressions/15_Method_Invocation/4_Super_Invocation_A02_t05: CompileTimeError # co19-roll r607: Please triage this failure
+Language/12_Expressions/15_Method_Invocation/4_Super_Invocation_A02_t05: Crash # co19-roll r607: Please triage this failure
 
 [ $compiler == dart2js && $checked ]
 Language/12_Expressions/03_Numbers_A05_t02: fail # co19-roll r546: Please triage this failure