Closures over variables

c/testdata

@@ -140,4 +140,4 @@ def f: . + 1; def g: def g: . + 100; $$f | $$g | $$f; ($$f | $$g), $$g
 
 [[100,200][] as $x | def f: . + $x; $$f | $$f | $$f]
 1
-[300.0, 600.0]
+[301.0, 601.0]