Adding support for syntax "let _ := e in e'" in Ltac.

Adding a file fixing #5996 and which uses this feature.

1 files changed, 8 insertions, 0 deletions

diff --git a/test-suite/bugs/5996.v b/test-suite/bugs/5996.v
new file mode 100644
index 0000000000..c9e3292b48
--- /dev/null
+++ b/test-suite/bugs/5996.v
@@ -0,0 +1,8 @@
+Goal Type.
+  let c := constr:(prod nat nat) in
+  let c' := (eval pattern nat in c) in
+  let c' := lazymatch c' with ?f _ => f end in
+  let c'' := lazymatch c' with fun x : Set => ?f => constr:(forall x : Type, f) end in
+  let _ := type of c'' in
+  exact c''.
+Defined.