I ran the gdb.rust tests against Rust 1.20 (beta) and saw a few
failures. The failures all came because a particular item moved to a
different module. Since the particular choice of module name isn't
important here, I simply widened the allowable results.
Tested locally against rustc 1.19, 1.20, and 1.21.
testsuite/ChangeLog
2017-08-05 Tom Tromey <tom@tromey.com>
* gdb.rust/simple.exp: Allow String to appear in a different
namespace.