1. Do not initialize the stack limit during isolate initialization, it is done instead at StartIsol…

runtime/vm/isolate.cc

Index: runtime/vm/isolate.cc
diff --git a/runtime/vm/isolate.cc b/runtime/vm/isolate.cc
index b1d5a4c27aa32941583cd997033d5eff93f3c655..69fb5ee30a293f810a1f8ea72047bf367a9578ce 100644
--- a/runtime/vm/isolate.cc
+++ b/runtime/vm/isolate.cc
@@ -894,11 +894,6 @@ Isolate* Isolate::Init(const char* name_prefix,
   ASSERT(state != NULL);
   result->set_api_state(state);
 
-  // Initialize stack limit (wait until later for the VM isolate, since the
-  // needed GetStackPointer stub has not yet been generated in that case).
-  if (!is_vm_isolate) {
-    result->InitializeStackLimit();
-  }
   result->set_main_port(PortMap::CreatePort(result->message_handler()));
 #if defined(DEBUG)
   // Verify that we are never reusing a live origin id.
@@ -938,11 +933,6 @@ Isolate* Isolate::Init(const char* name_prefix,
 }
 
 
-void Isolate::InitializeStackLimit() {
-  SetStackLimitFromStackBase(Isolate::GetCurrentStackPointer());
-}
-
-
 /* static */
 uword Isolate::GetCurrentStackPointer() {
   // Since AddressSanitizer's detect_stack_use_after_return instruments the