Fix bad reference in string interpolation.

dart/tests/co19/co19-dart2dart.status

Index: dart/tests/co19/co19-dart2dart.status
diff --git a/dart/tests/co19/co19-dart2dart.status b/dart/tests/co19/co19-dart2dart.status
index c03f3c0ed2e8c9f3cd36451aabfbf90f07ade4bc..74fd8a5829a477aff1dfb4f84feec975864133c1 100644
--- a/dart/tests/co19/co19-dart2dart.status
+++ b/dart/tests/co19/co19-dart2dart.status
@@ -115,7 +115,6 @@ Language/07_Classes/4_Abstract_Instance_Members_A03_t04: Fail # co19-roll r559:
 Language/07_Classes/6_Constructors/2_Factories_A10_t01: crash # co19-roll r587: Please triage this failure
 Language/07_Classes/6_Constructors/2_Factories_A10_t04: crash # co19-roll r587: Please triage this failure
 Language/12_Expressions/01_Constants_A20_t02: fail # co19-roll r546: Please triage this failure
-Language/12_Expressions/05_Strings/1_String_Interpolation_A01_t09: fail # co19-roll r546: Please triage this failure
 Language/12_Expressions/12_Instance_Creation/1_New_A02_t03: fail # co19-roll r546: Please triage this failure
 Language/12_Expressions/12_Instance_Creation/1_New_A02_t05: fail # co19-roll r546: Please triage this failure
 Language/12_Expressions/12_Instance_Creation/1_New_A02_t06: fail # co19-roll r546: Please triage this failure
@@ -173,4 +172,4 @@ LibTest/convert/JsonCodec/encode_A01_t02: RuntimeError # co19-roll r641: Please
 Language/12_Expressions/32_Type_Test_A02_t04: RuntimeError # co19-roll to r667: Please triage this failure
 
 [ $compiler == dart2dart && $unminified ]
-Language/14_Libraries_and_Scripts/1_Imports_A03_t31: RuntimeError # co19-roll r667: Please triage this failure
+Language/14_Libraries_and_Scripts/1_Imports_A03_t31: RuntimeError # co19-roll r667: Please triage this failure