Mark primitives integer as able to participate in reductions (fixes #10560).

The documentation states:
- Norm means the term is fully normalized and cannot create a redex
  when substituted
- Cstr means the term is in head normal form and that it can
  create a redex when substituted (i.e. constructor, fix, lambda)

1 files changed, 9 insertions, 0 deletions

diff --git a/test-suite/bugs/closed/bug_10560.v b/test-suite/bugs/closed/bug_10560.v
new file mode 100644
index 0000000000..a9a0949d9a
--- /dev/null
+++ b/test-suite/bugs/closed/bug_10560.v
@@ -0,0 +1,9 @@
+From Coq Require Import Int63.
+Open Scope int63_scope.
+
+Lemma foo :
+  let n := opp 0 in add n 0 = n.
+Proof.
+cbv.
+apply eq_refl.
+Qed.