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-rw-r--r--compiler/coreSyn/ExternalCore.lhs3
1 files changed, 3 insertions, 0 deletions
diff --git a/compiler/coreSyn/ExternalCore.lhs b/compiler/coreSyn/ExternalCore.lhs
index d2f6691a7c..287f08049e 100644
--- a/compiler/coreSyn/ExternalCore.lhs
+++ b/compiler/coreSyn/ExternalCore.lhs
@@ -74,6 +74,9 @@ data Ty
| UnsafeCoercion Ty Ty
| InstCoercion Ty Ty
| NthCoercion Int Ty
+ | LRCoercion LeftOrRight Ty
+
+data LeftOrRight = CLeft | CRight
data Kind
= Klifted