Test new hint for `bi_wand` (from !331)

tests/proofmode.v

@@ -6,6 +6,12 @@ Section tests.
 Context {PROP : sbi}.
 Implicit Types P Q R : PROP.
 
+Lemma test_eauto_emp_isplit_biwand P : emp ⊢ P ∗-∗ P.
+Proof. eauto 6. Qed.
+
+Lemma test_eauto_isplit_biwand P : (P ∗-∗ P)%I.
+Proof. iStartProof. eauto. Qed.
+
 Check "demo_0".
 Lemma demo_0 P Q : □ (P ∨ Q) -∗ (∀ x, ⌜x = 0⌝ ∨ ⌜x = 1⌝) → (Q ∨ P).
 Proof.