fix #14219 (#14225)

Co-authored-by: cooldome <[email protected]>

compiler/injectdestructors.nim

@@ -1064,7 +1064,7 @@ proc injectDefaultCalls(n: PNode, c: var Con) =
 proc extractDestroysForTemporaries(c: Con, destroys: PNode): PNode =
   result = newNodeI(nkStmtList, destroys.info)
   for i in 0..<destroys.len:
-    if destroys[i][1][0].sym.kind == skTemp:
+    if destroys[i][1][0].sym.kind in {skTemp, skForVar}:
       result.add destroys[i]
       destroys[i] = c.emptyNode
 

tests/arc/amodule.nim

@@ -0,0 +1,10 @@
+var vectors = @["a", "b", "c", "d", "e"]
+
+iterator testVectors(): string =
+  for vector in vectors:
+    yield vector
+
+var r = ""
+for item in testVectors():
+  r.add item
+echo r

tests/arc/tamodule.nim

@@ -0,0 +1,6 @@
+discard """
+  output: "abcde"
+  cmd: "nim c --gc:arc $file"
+"""
+
+import amodule