added tests from issue #497

tests/macros/macro_bug.nim

@@ -0,0 +1,17 @@
+import macros
+
+macro macro_bug*(s: stmt): stmt {.immediate.} =
+  s.expectKind({nnkProcDef, nnkMethodDef})
+
+  var params = s.params
+
+  let genericParams = s[2]
+  result = newNimNode(nnkProcDef).add(
+    s.name, s[1], genericParams, params, pragma(s), newEmptyNode())
+
+  var body = body(s)
+
+  # Fails here.
+  var call = newCall("macro_bug", s.params[1][0])
+  body.insert(0, call)
+  result.add(body)