many-thread-stepping test in mule, adjust call stack thread name decoration limit, now that call stack computation is async; tweak ctrl process memory cache lookup exit condition to be more robust to failed-read cases

src/ctrl/ctrl_core.c

@@ -1775,7 +1775,7 @@ ctrl_key_from_process_vaddr_range(CTRL_Handle process, Rng1U64 vaddr_range, B32
     {
       break;
     }
-    else if(!id_working && requested)
+    else if(!id_working)
     {
       break;
     }