This test checks for recursion in 'use' elements with external references. The passing conditions are that the browser does not crash, and that the green test is rendered. The passing conditions are that the
browser does not crash, and that at least one orange circle and a line of green text are rendered. Also, on an implementation-specific basis, additional orange and yellow circles with a dashed gray stroke may or may
not be rendered, depending upon when and how the implementation detects the circular reference, with the number of dashed circles of a given color indicating now many times the level of recurrsion permitted by the implementation..
This test depends upon 'struct-use-recursion-03-t.svg'.
