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-rw-r--r--compiler/GHC/Builtin/Names.hs4
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/GHC/Builtin/Names.hs b/compiler/GHC/Builtin/Names.hs
index 70a48dd350..d6eacd9562 100644
--- a/compiler/GHC/Builtin/Names.hs
+++ b/compiler/GHC/Builtin/Names.hs
@@ -111,6 +111,10 @@ by the user. For those things that *can* appear in source programs,
See also Note [Built-in syntax and the OrigNameCache]
+Note that one-tuples are an exception to the rule, as they do get assigned
+known keys. See
+Note [One-tuples] (Wrinkle: Make boxed one-tuple names have known keys)
+in GHC.Builtin.Types.
Note [The integer library]
~~~~~~~~~~~~~~~~~~~~~~~~~~