[vm] Don't do pragma_unsafe_no_bounds_check_test on IA32

TEST=ci
Bug: #56910
Change-Id: Iaed0cbf5ed139a14cfa4736839fbd6013bcfccfc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/391702
Reviewed-by: Siva Annamalai <[email protected]>
Commit-Queue: Stephen Adams <[email protected]>

Author: rakudrama

runtime/vm/compiler/backend/pragma_unsafe_no_bounds_check_test.cc

@@ -10,6 +10,8 @@
 
 namespace dart {
 
+#if !defined(TARGET_ARCH_IA32)
+
 static int CountCheckBounds(FlowGraph* flow_graph) {
   int checks = 0;
   for (BlockIterator block_it = flow_graph->reverse_postorder_iterator();
@@ -105,4 +107,6 @@ ISOLATE_UNIT_TEST_CASE(BoundsCheckElimination_Pragma_learning_control) {
   EXPECT_EQ(1, CountCheckBounds(flow_graph));
 }
 
+#endif  // !defined(TARGET_ARCH_IA32)
+
 }  // namespace dart