close #11705; add a testcase (#21128)

(cherry picked from commit 53eed2be45)

tests/template/t11705.nim

@@ -0,0 +1,17 @@
+type RefObj = ref object
+
+proc `[]`(val: static[int]) = # works with different name/overload or without static arg
+  discard
+
+template noRef*(T: typedesc): typedesc = # works without template indirection
+  typeof(default(T)[])
+
+proc `=destroy`(x: var noRef(RefObj)) =
+  discard
+
+proc foo =
+  var x = new RefObj
+  doAssert $(x[]) == "()"
+
+# bug #11705
+foo()