| This is a smoke test of the SSA renamer's local variable preserver. | |
| It tests a case observed from Scala, wherein a local variable is assigned | |
| an identical value twice. The correct result should be only a single | |
| mark-local, with the second assignment eaten by copy-propogation. | |
| This test compares emitted code against a known-good (via eyeballing) | |
| version, so it is possible for this test to spuriously fail if other | |
| aspects of conversion end up altering the output in innocuous ways. |