New growth strategy for growable arrays

runtime/vm/code_descriptors.cc

Index: runtime/vm/code_descriptors.cc
diff --git a/runtime/vm/code_descriptors.cc b/runtime/vm/code_descriptors.cc
index 18dbeadb9c271aa9f94030a4c3743158be3275c0..cc8b043800cde865cffba603c21d95ada417751f 100644
--- a/runtime/vm/code_descriptors.cc
+++ b/runtime/vm/code_descriptors.cc
@@ -73,7 +73,7 @@ RawArray* StackMapTableBuilder::FinalizeStackMaps(const Code& code) {
   if (num_entries == 0) {
     return Object::empty_array().raw();
   }
-  return Array::MakeArray(list_);
+  return Array::MakeFixedLength(list_);
 }
 
 
@@ -406,7 +406,7 @@ RawArray* CodeSourceMapBuilder::InliningIdToFunction() {
   if (inlined_functions_.Length() == 0) {
     return Object::empty_array().raw();
   }
-  return Array::MakeArray(inlined_functions_);
+  return Array::MakeFixedLength(inlined_functions_);
 }