[elpa] externals/peg updated (b8a3736 -> 49f955d)

[Stefan Monnier]

monnier pushed a change to branch externals/peg.

      from  b8a3736   * peg-tests.el: New file.  Move tests and examples to it
       new  ecac802   * peg-tests.el (peg-test): Define as ERT test
       new  c800cbf   * peg.el: Improve error signal; allow empty *-loops; use 
"--"
       new  49f955d   * peg.el: Use cl-generic instead of ad-hoc method-system


Summary of changes:
 peg-tests.el | 140 ++++++++++---------
 peg.el       | 448 ++++++++++++++++++++++++++++++-----------------------------
 2 files changed, 299 insertions(+), 289 deletions(-)