Step2: fixes #13781, fixes #13805 (#13897)

* Fix sym owner in wrapper proc
* threadpool changes
* revert lowerings
* add newFastMoveStmt
* try fixing test by switching to cpp

Co-authored-by: cooldome <ariabushenko@bk.ru>

tests/arc/tthread.nim

@@ -0,0 +1,63 @@
+discard """
+  cmd: "nim cpp --gc:arc --threads:on $file"
+  output: '''ok1
+ok2
+destroyed
+destroyed
+destroyed
+'''
+"""
+import threadpool, os
+
+type
+  MyObj = object
+    p: int
+  MyObjRef = ref MyObj
+
+proc `=destroy`(x: var MyObj) = 
+  if x.p != 0:
+    echo "destroyed"
+
+proc thread1(): string =
+  os.sleep(1000)
+  return "ok1"
+
+proc thread2(): ref string =
+  os.sleep(1000)
+  new(result)
+  result[] = "ok2"
+
+proc thread3(): ref MyObj =
+  os.sleep(1000)
+  new(result)
+  result[].p = 2
+
+var fv1 = spawn thread1()
+var fv2 = spawn thread2()
+var fv3 = spawn thread3()
+sync()
+echo ^fv1
+echo (^fv2)[]
+
+
+proc thread4(x: MyObjRef): MyObjRef {.nosinks.} =
+  os.sleep(1000)
+  result = x
+
+proc thread5(x: sink MyObjRef): MyObjRef =
+  os.sleep(1000)
+  result = x
+
+proc ref_forwarding_test = 
+  var x = new(MyObj)
+  x[].p = 2
+  var y = spawn thread4(x)
+ 
+proc ref_sink_forwarding_test = 
+  var x = new(MyObj)
+  x[].p = 2
+  var y = spawn thread5(x)
+
+ref_forwarding_test()
+ref_sink_forwarding_test()  
+sync()