Tests that --fields_may_be_reset, --link_natives_lazily, and --no_allow_absolute_addresses work in …

runtime/vm/intermediate_language_arm64.cc

Index: runtime/vm/intermediate_language_arm64.cc
diff --git a/runtime/vm/intermediate_language_arm64.cc b/runtime/vm/intermediate_language_arm64.cc
index e8bd7597d3008cd8dd183741aa604c70c5e6284f..c62dad85f2b727b3371ef715cfc1e050cd8699af 100644
--- a/runtime/vm/intermediate_language_arm64.cc
+++ b/runtime/vm/intermediate_language_arm64.cc
@@ -2593,10 +2593,15 @@ class CheckStackOverflowSlowPath : public SlowPathCode {
       const Register value = instruction_->locs()->temp(0).reg();
       __ Comment("CheckStackOverflowSlowPathOsr");
       __ Bind(osr_entry_label());
-      ASSERT(FLAG_allow_absolute_addresses);
-      __ LoadImmediate(TMP, flags_address);
-      __ LoadImmediate(value, Isolate::kOsrRequest);
-      __ str(value, Address(TMP));
+      if (FLAG_allow_absolute_addresses) {
+        __ LoadImmediate(TMP, flags_address);
+        __ LoadImmediate(value, Isolate::kOsrRequest);
+        __ str(value, Address(TMP));
+      } else {
+        __ LoadIsolate(TMP);
+        __ LoadImmediate(value, Isolate::kOsrRequest);
+        __ str(value, Address(TMP, Isolate::stack_overflow_flags_offset()));
+      }
     }
     __ Comment("CheckStackOverflowSlowPath");
     __ Bind(entry_label());