Fix StoreIndexedInstr input representation requirements for Int32/Uint32 arrays.

tests/co19/co19-runtime.status

Index: tests/co19/co19-runtime.status
diff --git a/tests/co19/co19-runtime.status b/tests/co19/co19-runtime.status
index e7e8251e5ee776adf3862fde0370318bed42b0d5..328cf862981eab019b40882823176bbc3c14fef6 100644
--- a/tests/co19/co19-runtime.status
+++ b/tests/co19/co19-runtime.status
@@ -2,19 +2,6 @@
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
-# Failing on vm-linux-release-optcounter-threshold-be only. There seems to
-# be no way to disable only that configuration though.
-[ $runtime == vm && $system == linux && $mode == release ]
-LibTest/core/Duration/operator_lt_A01_t01: Skip # Issue 20875
-LibTest/core/Duration/operator_lte_A01_t01: Skip # Issue 20875
-LibTest/core/Duration/operator_gte_A01_t01: Skip # Issue 20875
-LibTest/core/Duration/operator_mult_A01_t01: Skip # Issue 20875
-LibTest/core/Duration/operator_gt_A01_t01: Skip # Issue 20875
-LibTest/core/Duration/operator_plus_A01_t01: Skip # Issue 20875
-LibTest/core/Duration/operator_eq_A01_t01: Skip # Issue 20875
-LibTest/core/Duration/operator_minus_A01_t01: Skip # Issue 20875
-LibTest/core/Duration/operator_div_A01_t01: Skip # Issue 20875
-
 
 [ $compiler == none && ($runtime == vm || $runtime == dartium || $runtime == ContentShellOnAndroid) ]