[RFA jit 2/2] introduce scoped_timevar

[David Malcolm]

On Tue, 2014-03-18 at 08:57 -0600, Tom Tromey wrote:
> This introduces a new scoped_timevar class.  It pushes a given timevar
> in its constructor, and pops it in the destructor, giving a much
> simpler way to use timevars in the typical case where they can be
> scoped.
> ---
>  gcc/ChangeLog.jit      |  4 ++++
>  gcc/jit/ChangeLog.jit  |  4 ++++
>  gcc/jit/internal-api.c | 16 +++++-----------
>  gcc/timevar.h          | 24 +++++++++++++++++++++++-
>  4 files changed, 36 insertions(+), 12 deletions(-)

Thanks.  Looks good to me, but, like the other patch, are the
ChangeLog.jit entries available somewhere?