add docstring symbol to C level actor

scripts/core/engine.js

@@ -1,5 +1,5 @@
 (function engine() {  
-prosperon.DOC = Symbol('+documentation+') // Symbol for documentation references
+  prosperon.DOC = prosperon.hidden.DOCSYM
 
 function caller_data(depth = 0)
 {

source/jsffi.c

@@ -1632,9 +1632,9 @@ void ffi_load(JSContext *js)
   
   JS_FreeValue(js,globalThis);
 
-/*  
   prosperon_rt *actor = JS_GetContextOpaque(js);
   actor->actor_sym = JS_NewSymbol(js, "actor symbol", 0);
+  actor->doc_sym = JS_NewSymbol(js, "+documentation+", 0);
   JS_SetPropertyStr(js, hidden_fn, "ACTORDATA", actor->actor_sym);
-*/
+  JS_SetPropertyStr(js, hidden_fn, "DOCSYM", actor->doc_sym);
 }

source/prosperon.h

@@ -70,6 +70,7 @@ typedef struct prosperon_rt {
   int main_thread_only;
   
   JSValue actor_sym;
+  JSValue doc_sym;
   
   const char *name; // human friendly name
 } prosperon_rt;