fixes #5479

tests/method/tgeneric_methods.nim

@@ -1,5 +1,7 @@
 discard """
-  output: "wow2"
+  output: '''wow2
+X 1
+X 3'''
 """
 type
   First[T] = ref object of RootObj
@@ -22,3 +24,18 @@ proc takeFirst(x: First[int]) =
   wow(2, x)
 
 takeFirst(x)
+
+
+# bug #5479
+type
+  Base[T: static[int]] = ref object of RootObj
+
+method test[T](t: Base[T]) {.base.} =
+  echo "X ", t.T
+
+let ab = Base[1]()
+
+ab.test()
+
+let ac = Base[3]()
+ac.test()