Fail new space promotions only when old space is truly exhausted.

runtime/vm/heap.h

Index: runtime/vm/heap.h
diff --git a/runtime/vm/heap.h b/runtime/vm/heap.h
index fb4e92799a2426e08f45b599b209bafa1b64627a..819a80a9b7627408ea3ef5d3cb5dd562b8203a74 100644
--- a/runtime/vm/heap.h
+++ b/runtime/vm/heap.h
@@ -73,15 +73,22 @@ class Heap {
     return 0;
   }
 
-  uword TryAllocate(intptr_t size, Space space) {
+  uword TryAllocate(
+      intptr_t size,
+      Space space,
+      PageSpace::GrowthPolicy growth_policy = PageSpace::kControlGrowth) {
     ASSERT(!read_only_);
     switch (space) {
       case kNew:
         return new_space_->TryAllocate(size);
       case kOld:
-        return old_space_->TryAllocate(size, HeapPage::kData);
+        return old_space_->TryAllocate(size,
+                                       HeapPage::kData,
+                                       growth_policy);
       case kCode:
-        return old_space_->TryAllocate(size, HeapPage::kExecutable);
+        return old_space_->TryAllocate(size,
+                                       HeapPage::kExecutable,
+                                       growth_policy);
       default:
         UNREACHABLE();
     }