(test_breakpoints_creation_and_listing): Format of breakpoint
table has changed.
(sparc_register_tests): Expand floating-point number regexp to
recognize NaN values, too. Replace ineffectual single backslash
before a hyphen with a double backslash. Don't check the exact
numbers of the registers which have changed, since there's no way
to know which registers changed, exactly; just check that the
result is well-formed.
* mi0-regs.exp: (sparc_register_tests): Same as for
sparc_register_tests in mi-regs.exp.
