Add regression tests for univ. poly. and prim proj

These regression tests are aggregated from the various bugs I (and
others) have reported on https://github.com/HoTT/coq/issues relating to
universe polymorphism, primitive projections, and eta for records.
These are the tests that trunk currently passes.

I'm not sure about the naming scheme (HoTT_coq_###.v, where ### is the
number of the issue in GitHub), but I couldn't think of a better one.

1 files changed, 27 insertions, 0 deletions

diff --git a/test-suite/bugs/closed/HoTT_coq_042.v b/test-suite/bugs/closed/HoTT_coq_042.v
new file mode 100644
index 000000000..6b206a2f5
--- /dev/null
+++ b/test-suite/bugs/closed/HoTT_coq_042.v
@@ -0,0 +1,27 @@
+Set Implicit Arguments.
+Set Universe Polymorphism.
+Generalizable All Variables.
+
+Record Category (obj : Type) := { Morphism : obj -> obj -> Type }.
+
+Definition SetCat : @Category Set := @Build_Category Set (fun s d => s -> d).
+
+Record Foo := { foo : forall A (f : Morphism SetCat A A), True }.
+
+Local Notation PartialBuild_Foo pf := (@Build_Foo (fun A f => pf A f)).
+
+Set Printing Universes.
+Let SetCatFoo' : Foo.
+  let pf := fresh in
+  let pfT := fresh in
+  evar (pfT : Prop);
+    cut pfT;
+    [ subst pfT; intro pf;
+      let t := constr:(PartialBuild_Foo pf) in
+      let t' := (eval simpl in t) in
+      exact t'
+    | ].
+  admit.
+(* Toplevel input, characters 15-20:
+Error: Universe inconsistency (cannot enforce Set <= Prop).
+ *)