[XRay] Use default-constructed struct as argument to Append(...)
This is a follow-up to D54989.
Work-around gcc-4.8 failing to handle brace-init for structs to imply
default-construction of an aggregate, and treats it as an initialiser
list instead.
@@ -95,7 +95,7 @@ void post(const FunctionCallTrie &T, tid_t TId) XRAY_NEVER_INSTRUMENT {
if (GlobalAllocators == nullptr || ThreadTries == nullptr)
return;
- Item = ThreadTries->Append({});
+ Item = ThreadTries->Append(ThreadTrie());
if (Item == nullptr)
return;
