[vm, compiler] Fix const map/set setIndexStoreRelease to actually generate a store release.

TEST=tsan
Change-Id: If644f0b74d8599de3304cba72b88f73d5829b6a0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/443621
Reviewed-by: Alexander Aprelev <[email protected]>
Commit-Queue: Ryan Macnak <[email protected]>

Author: rmacnak-google

runtime/vm/compiler/frontend/base_flow_graph_builder.cc

@@ -580,9 +580,9 @@ Fragment BaseFlowGraphBuilder::StoreNativeField(
     compiler::Assembler::MemoryOrder memory_order /* = kRelaxed */) {
   Value* value = Pop();
   Value* instance = Pop();
-  StoreFieldInstr* store = new (Z)
-      StoreFieldInstr(slot, instance, value, emit_store_barrier,
-                      stores_inner_pointer, InstructionSource(position), kind);
+  StoreFieldInstr* store = new (Z) StoreFieldInstr(
+      slot, instance, value, emit_store_barrier, stores_inner_pointer,
+      InstructionSource(position), kind, memory_order);
   return Fragment(store);
 }