sympy/sympy — pull request #1625 by rlamy (2012-10-30 02:51:57+00:00)
Title: Post-merge cleanup of the Risch branch

Here, I'm trying to merge test_failing_integrals with test_integrals. For now, I've almost only dealt with the xpassing tests.

This adds tests for issues 1604 and 1888.