Bug fix

Author: vogelsgesang

llvm/lib/Bitcode/Writer/BitcodeWriter.cpp

@@ -2352,7 +2352,9 @@ void ModuleBitcodeWriter::writeDILabel(
   Record.push_back(N->getLine());
   Record.push_back(N->getColumn());
   Record.push_back(
-      N->getCoroSuspendIdx().value_or(std::numeric_limits<uint64_t>::max()));
+      N->getCoroSuspendIdx().has_value()
+          ? (uint64_t)N->getCoroSuspendIdx().value()
+          : std::numeric_limits<uint64_t>::max());
 
   Stream.EmitRecord(bitc::METADATA_LABEL, Record, Abbrev);
   Record.clear();