[patches] Cross-testing changes vs. native testing

[Jim Blandy <jimb@xxxxxxxxxxxxxxxx>]

Joseph, in our CodeSourcery meeting this morning, you mentioned that I
should be sure that my changes for cross-testing don't break native
testing.  Empirically, I will be comparing before-and-after native
results, but analytically, did you notice anything that looked odd in
my patch?  Are there specific areas you anticipate will require extra
care?