From 73c62dc7650a24689ffac4c7d7aa5784fef23d53 Mon Sep 17 00:00:00 2001
From: JamesWrigley <james@puiterwijk.org>
Date: Thu, 14 Mar 2024 10:42:33 +0100
Subject: [PATCH] Use Base.promote_op() instead of Base._return_type()

return_type() is kinda broken in v1.10, see:
https://github.com/JuliaLang/julia/issues/52385

In any case Base.promote_op() is the official public API for this operation so
we should use it anyway.
---
 src/submission.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/submission.jl b/src/submission.jl
index 776315f65..9627c77a3 100644
--- a/src/submission.jl
+++ b/src/submission.jl
@@ -186,7 +186,7 @@ end
 function EagerThunkMetadata(spec::EagerTaskSpec)
     f = chunktype(spec.f).instance
     arg_types = ntuple(i->chunktype(spec.args[i][2]), length(spec.args))
-    return_type = Base._return_type(f, Base.to_tuple_type(arg_types))
+    return_type = Base.promote_op(f, arg_types...)
     return EagerThunkMetadata(return_type)
 end
 chunktype(t::EagerThunk) = t.metadata.return_type