Change `BitTableBase<>::num_rows_` to `uint32_t`.

For 64-bit targets, changing the member from `size_t` to
`uint32_t` reduces `sizeof(CodeInfo)` from 376 to 336 and
keeps the `Thread::CreateInternalStackTrace()` from reaching
the `-Wframe-larger-than=` limit enforced with `-Werror`.

Test: m
Change-Id: Ic42192355d224ca6afc3927506606a00ee084e19
1 file changed