Tweak corelib/ConstListLiteralTest while we wait for a resolution of CL 9839101.

dart/tests/corelib/src/ConstListLiteralTest.dart

Index: dart/tests/corelib/src/ConstListLiteralTest.dart
diff --git a/dart/tests/corelib/src/ConstListLiteralTest.dart b/dart/tests/corelib/src/ConstListLiteralTest.dart
index fd52b665c3824be415aba178fcb6f0d1b811bfbe..310c79ec0ecae6e451b570fdd3b67e09cc0b9f26 100644
--- a/dart/tests/corelib/src/ConstListLiteralTest.dart
+++ b/dart/tests/corelib/src/ConstListLiteralTest.dart
@@ -53,6 +53,11 @@ class ConstListLiteralTest {
     exception = null;
     try {
       list.copyFrom([1], 0, 0, 1);
+    } catch (NoSuchMethodException e) {
+      // TODO(ahe): While we are resolving CL 9839101, we have two
+      // cases: the VMs implementation class has a method named
+      // copyFrom, dart2js does not.
+      exception = e;
     } catch (UnsupportedOperationException e) {
       exception = e;
     }