[coq] Enable memprof_limits token-based interruption

This is a preliminary patch.

compiler/driver.ml

@@ -37,6 +37,7 @@ let go args =
   let root_state = coq_init ~debug in
   let roots = if List.length roots < 1 then [ Sys.getcwd () ] else roots in
   let default = Coq.Workspace.default ~debug ~cmdline in
+  let () = Coq.Limits.start () in
   let token = Coq.Limits.Token.create () in
   let workspaces =
     List.map

controller/coq_lsp.ml

@@ -95,6 +95,8 @@ let rec lsp_init_loop ~ifn ~ofn ~cmdline ~debug =
 
 let lsp_main bt coqcorelib coqlib ocamlpath vo_load_path ml_include_path
     require_libraries delay =
+  Coq.Limits.start ();
+
   (* Try to be sane w.r.t. \r\n in Windows *)
   Stdlib.set_binary_mode_in stdin true;
   Stdlib.set_binary_mode_out stdout true;

coq/limits.ml

@@ -46,4 +46,4 @@ module Coq : Intf = struct
 end
 
 module Mp = Limits_mp_impl
-include Coq
+include Mp