symbolslots nil when there are no symbols, changed debugger to not have special case

src/boot/boot.janet

@@ -2774,8 +2774,7 @@
 
   (loop [[birth death slot sym] :in symbolslots]
     (when (and (<= birth pc)
-               (or (= death 0)
-                   (< pc death)))
+               (< pc death))
         (put nextenv (symbol sym) @{:value (get-in frame [:slots slot])})))
 
   (merge-into nextenv debugger-env)

src/core/asm.c

@@ -883,6 +883,8 @@ static Janet janet_disasm_slotcount(JanetFuncDef *def) {
 }
 
 static Janet janet_disasm_symbolslots(JanetFuncDef *def) {
+    // *debug* was probably not true when compiling the function
+    if (def->symbolslots == NULL) { return janet_wrap_nil(); }
     JanetArray *symbolslots = janet_array(def->symbolslots_length);
     for (int32_t i = 0; i < def->symbolslots_length; i++) {
         JanetSymbolSlot ss = def->symbolslots[i];