Rename heap_lang/lib/heap.v -> heap_lang/heap.v

It is not a library; it does not contain code, but instead is a core
part of heap_lang.

_CoqProject

@@ -87,7 +87,7 @@ heap_lang/lifting.v
 heap_lang/derived.v
 heap_lang/notation.v
 heap_lang/substitution.v
-heap_lang/lib/heap.v
+heap_lang/heap.v
 heap_lang/lib/spawn.v
 heap_lang/lib/par.v
 heap_lang/lib/assert.v

heap_lang/lib/par.v

-From iris.heap_lang Require Export heap spawn.
+From iris.heap_lang Require Export spawn.
 From iris.heap_lang Require Import proofmode notation.
 Import uPred.
 

heap_lang/lib/spawn.v

 From iris.program_logic Require Export global_functor.
-From iris.heap_lang Require Export heap.
 From iris.proofmode Require Import invariants ghost_ownership.
 From iris.heap_lang Require Import proofmode notation.
 Import uPred.

tests/one_shot.v

 From iris.algebra Require Import one_shot dec_agree.
 From iris.program_logic Require Import hoare.
-From iris.heap_lang Require Import heap assert proofmode notation.
+From iris.heap_lang Require Import assert proofmode notation.
 From iris.proofmode Require Import invariants ghost_ownership.
 Import uPred.