[NFC][sanitizer] Use more bytes of sanitizer_stack_store_test pointers

GitOrigin-RevId: 655c0bfe2cb40a3e628e319dd90c35ef722d18ba
diff --git a/lib/sanitizer_common/tests/sanitizer_stack_store_test.cpp b/lib/sanitizer_common/tests/sanitizer_stack_store_test.cpp
index d6aa1fc..031f2d9 100644
--- a/lib/sanitizer_common/tests/sanitizer_stack_store_test.cpp
+++ b/lib/sanitizer_common/tests/sanitizer_stack_store_test.cpp
@@ -26,7 +26,7 @@
   template <typename Fn>
   void ForEachTrace(Fn fn, uptr n = 1000000) {
     std::vector<uptr> frames(kStackTraceMax);
-    std::iota(frames.begin(), frames.end(), 1);
+    std::iota(frames.begin(), frames.end(), 0x100000);
     MurMur2HashBuilder h(0);
     for (uptr i = 0; i < n; ++i) {
       h.add(i);