Add --hot-reload to the test harness.

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 b5bdadc4ac761b774798129a12bbc4c908b52336..941a1d8c6fc420853b6345fed0dfc282e4ada7c8 100644
--- a/tests/co19/co19-runtime.status
+++ b/tests/co19/co19-runtime.status
@@ -190,3 +190,23 @@ Language/Expressions/Object_Identity/double_t02: RuntimeError # Issue #26374
 
 [ $compiler == precompiler && $runtime == dart_precompiled && $arch == simarm ]
 LibTest/typed_data/Float32x4/operator_division_A01_t02: RuntimeError # Issue #26675
+
+[ $hot_reload ]
+LibTest/collection/DoubleLinkedQueue/DoubleLinkedQueue_class_A01_t01: Pass, Crash
+LibTest/collection/HashSet/HashSet_class_A01_t01: Crash
+LibTest/collection/IterableBase/IterableBase_class_A01_t02: Crash
+LibTest/collection/LinkedHashSet/LinkedHashSet_class_A01_t01: Crash
+LibTest/collection/LinkedList/iterator_current_A01_t01: Crash
+LibTest/collection/ListBase/ListBase_class_A01_t01: Pass, Timeout, Crash
+LibTest/collection/ListBase/ListBase_class_A01_t02: Pass, Timeout
+LibTest/collection/ListMixin/ListMixin_class_A01_t01: Pass, Timeout, Crash
+LibTest/collection/ListMixin/ListMixin_class_A01_t02: Pass, Timeout
+LibTest/collection/ListQueue/ListQueue_class_A01_t01: Pass, Crash
+LibTest/collection/Queue/Queue_class_A01_t01: Pass, Crash
+LibTest/core/List/List.from_A01_t01: Crash
+LibTest/core/List/List_class_A01_t01: Pass, Crash
+LibTest/core/List/List_class_A01_t02: Pass, Timeout, Crash
+LibTest/core/Map/Map_class_A01_t04: Pass, Timeout
+LibTest/core/Set/IterableBase_A01_t01: Pass, Crash
+LibTest/core/Uri/Uri_A06_t03: Pass, Timeout
+LibTest/core/Uri/encodeQueryComponent_A01_t02: Pass, Timeout