Named all zones in the project

src/builtins/builtins.cc

Index: src/builtins/builtins.cc
diff --git a/src/builtins/builtins.cc b/src/builtins/builtins.cc
index d5a0e17d17312dce817b53534a935a860806f5d9..84b231d55bdfe1bb4ad69a7070f3881b9013e688 100644
--- a/src/builtins/builtins.cc
+++ b/src/builtins/builtins.cc
@@ -83,7 +83,7 @@ Code* BuildWithCodeStubAssemblerJS(Isolate* isolate,
                                    CodeAssemblerGenerator generator, int argc,
                                    Code::Flags flags, const char* name) {
   HandleScope scope(isolate);
-  Zone zone(isolate->allocator());
+  Zone zone(isolate->allocator(), ZONE_NAME);
   CodeStubAssembler assembler(isolate, &zone, argc, flags, name);
   generator(&assembler);
   Handle<Code> code = assembler.GenerateCode();
@@ -97,7 +97,7 @@ Code* BuildWithCodeStubAssemblerCS(Isolate* isolate,
                                    CallDescriptors::Key interface_descriptor,
                                    Code::Flags flags, const char* name) {
   HandleScope scope(isolate);
-  Zone zone(isolate->allocator());
+  Zone zone(isolate->allocator(), ZONE_NAME);
   // The interface descriptor with given key must be initialized at this point
   // and this construction just queries the details from the descriptors table.
   CallInterfaceDescriptor descriptor(isolate, interface_descriptor);