feat(overload): select overloads by return type as well as parameters

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/cps/FunctionGen.h b/include/cps/FunctionGen.h
index f5e5ba2..c3c530b 100644
--- a/include/cps/FunctionGen.h
+++ b/include/cps/FunctionGen.h
@@ -40,6 +40,7 @@ struct FuncSig {
     std::string Name;
     std::string LinkName;
     std::string ParamKey;
+    std::string ReturnKey;
     bool IsOverload = false;
     const PrototypeAST *Prototype = nullptr;
     std::string ReturnTypeName;