[lldb] Fix a "missing return" warning in XcodeSDK

diff --git a/lldb/source/Utility/XcodeSDK.cpp b/lldb/source/Utility/XcodeSDK.cpp
index ae46042..d5ef8e2 100644 (file)
--- a/lldb/source/Utility/XcodeSDK.cpp
+++ b/lldb/source/Utility/XcodeSDK.cpp
@@ -41,6 +41,7 @@ static llvm::StringRef GetName(XcodeSDK::Type type) {
   case XcodeSDK::unknown:
     return {};
   }
+  llvm_unreachable("Unhandled sdk type!");
 }
 
 XcodeSDK::XcodeSDK(XcodeSDK::Info info) : m_name(GetName(info.type).str()) {