Revert "Allow import/export of libraries with no name."

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 3d70c7402289346d9503146fa64fbe59f8329f0e..a9306856789b671363d09ca37d4aa847d922af1f 100644
--- a/tests/co19/co19-dart2js.status
+++ b/tests/co19/co19-dart2js.status
@@ -228,10 +228,6 @@ LibTest/typed_data/Uint32x4/toFloat32x4_A01_t01: RuntimeError # co19 Issue 601
 LibTest/typed_data/Uint32x4/toFloat32x4_A01_t02: RuntimeError # co19 Issue 601
 LibTest/typed_data/Float32x4/clamp_A02_t01: RuntimeError # co19 Issue 600
 
-Language/14_Libraries_and_Scripts/1_Imports_A01_t17: Fail # co19 Issue 603
-Language/14_Libraries_and_Scripts/1_Imports_A04_t01: Fail # co19 Issue 603
-
-Language/14_Libraries_and_Scripts/2_Exports_A05_t01: Fail # co19 Issue 604
 
 [ $compiler == dart2js && $jscl ]
 LibTest/core/RegExp/Pattern_semantics/firstMatch_CharacterClassEscape_A04_t01: Fail, Pass # issue 3333
@@ -455,6 +451,7 @@ Language/14_Libraries_and_Scripts/1_Imports_A03_t27: fail # co19-roll r546: Plea
 Language/14_Libraries_and_Scripts/1_Imports_A03_t28: fail # co19-roll r546: Please triage this failure
 Language/14_Libraries_and_Scripts/1_Imports_A03_t29: fail # co19-roll r546: Please triage this failure
 Language/14_Libraries_and_Scripts/1_Imports_A03_t30: fail # co19-roll r546: Please triage this failure
+Language/14_Libraries_and_Scripts/1_Imports_A04_t03: fail # co19-roll r546: Please triage this failure
 Language/14_Libraries_and_Scripts/4_Scripts_A03_t01: fail # co19-roll r546: Please triage this failure
 Language/14_Libraries_and_Scripts/4_Scripts_A03_t03: fail # co19-roll r546: Please triage this failure
 Language/14_Libraries_and_Scripts/5_URIs_A01_t01: fail # co19-roll r546: Please triage this failure