define `delay' in terms of make-promise

* module/ice-9/boot-9.scm (delay): Define `delay' in terms of
  make-promise.

* module/ice-9/psyntax-pp.scm (compile): Regenerated with a fully
  compiled Guile, so that the gensym numbers are the same.

* module/language/tree-il/compile-glil.scm: Add some notes about what
  needs doing to catch up to the old compiler.

module/ice-9/boot-9.scm

@@ -210,6 +210,10 @@
 ;; module system has booted up.
 (define %pre-modules-transformer sc-expand)
 
+(define-syntax delay
+  (syntax-rules ()
+    ((_ exp) (make-promise (lambda () exp)))))
+
 
 
 ;;; {Defmacros}

module/language/tree-il/compile-glil.scm

@@ -28,6 +28,19 @@
   #:use-module (language tree-il analyze)
   #:export (compile-glil))
 
+;;; TODO:
+;;
+;; * (delay x) -> (make-promise (lambda () x))
+;; * ([@]apply f args) -> goto/apply or similar
+;; * ([@]apply values args) -> goto/values or similar
+;; * ([@]call-with-values prod cons) ...
+;; * ([@]call-with-current-continuation prod cons) ...
+;; call-with-values -> mv-bind
+;; compile-time-environment
+;; GOOPS' @slot-ref, @slot-set
+;; basic degenerate-case reduction
+;; vm op "inlining"
+
 ;; allocation:
 ;;  sym -> (local . index) | (heap level . index)
 ;;  lambda -> (nlocs . nexts)