fixes #2599

tests/generics/mbind_bracket.nim

@@ -0,0 +1,17 @@
+
+import tables
+
+type
+  UUIDObject* = ref object
+    uuid: string
+
+  Registry*[T] = ref object
+    objects: Table[string, T]
+
+proc newRegistry*[T](): Registry[T] =
+  result = Registry[T]()
+  result.objects = initTable[string, T](128)
+
+proc register*[T](self: Registry[T], obj: T) =
+  self.objects[obj.uuid] = obj
+

tests/generics/tbind_bracket.nim

@@ -0,0 +1,20 @@
+discard """
+  output: "317"
+"""
+
+# bug #2599
+
+import mbind_bracket
+
+# also test that `[]` can be passed now as a first class construct:
+
+template takeBracket(x, a, i: untyped) =
+  echo x(a, i)
+
+var a: array[10, int]
+a[8] = 317
+
+takeBracket(`[]`, a, 8)
+
+let reg = newRegistry[UUIDObject]()
+reg.register(UUIDObject())

tests/generics/tthread_generic.nim

@@ -3,7 +3,7 @@ discard """
 """
 
 type
-  TThreadFuncArgs[T] = object of TObject
+  TThreadFuncArgs[T] = object of RootObj
     a: proc(): T {.thread.}
     b: proc(val: T) {.thread.}