Removed IllegalAccessException and UnsupportedOperationException.

tests/standalone/io/read_into_const_list_test.dart

Index: tests/standalone/io/read_into_const_list_test.dart
diff --git a/tests/standalone/io/read_into_const_list_test.dart b/tests/standalone/io/read_into_const_list_test.dart
index b87d2d8932395e0faf08a6eff41dc5e901ac456b..5fc94bb7e77e947a93cd6a25793d78fcb85b40e1 100644
--- a/tests/standalone/io/read_into_const_list_test.dart
+++ b/tests/standalone/io/read_into_const_list_test.dart
@@ -22,7 +22,7 @@ void main() {
     input.readInto(a, 0, 1);
     Expect.fail("no exception thrown");
   } catch (e) {
-    Expect.isTrue(e is UnsupportedOperationException);
+    Expect.isTrue(e is StateError);
   }
   Expect.equals(0, a[0]);
   Expect.equals(0, b[0]);