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

tests/co19/co19-dart2dart.status

Index: tests/co19/co19-dart2dart.status
diff --git a/tests/co19/co19-dart2dart.status b/tests/co19/co19-dart2dart.status
index 6d18f7c0bf447730fff79ac0cb9b17fc3b5fc28f..28aaa57b171d9b98e7b842947e8cf30cb55e6de3 100644
--- a/tests/co19/co19-dart2dart.status
+++ b/tests/co19/co19-dart2dart.status
@@ -91,12 +91,6 @@ LibTest/core/double/floor_A01_t04: Fail # truncate/ceil/floor/round returns ints
 LibTest/core/double/round_A01_t02: Fail # truncate/ceil/floor/round returns ints, issue 389
 LibTest/core/double/round_A01_t04: Fail # truncate/ceil/floor/round returns ints, issue 389
 
-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
-
-
 # co19-roll r546 (11.08.2013) caused these failures
 [ $compiler == dart2dart ]
 Language/03_Overview/1_Scoping_A02_t28: Fail # co19-roll r559: Please triage this failure
@@ -219,6 +213,7 @@ Language/14_Libraries_and_Scripts/1_Imports_A03_t28: fail # co19-roll r546: Plea
 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_A03_t65: pass, fail, ok # co19 issue 560
+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