master updated (4e10821334 -> 26d2ac38e9)

[Stefan Monnier]

monnier pushed a change to branch master.

      from  4e10821334 lisp/eshell/em-tramp.el: Rename 'TRAMP' to 'Tramp'.
       new  2fc6e715a2 Tweak the overlay related `insert-before-markers' tests
       new  26d2ac38e9 Minor tweaks to the fix for `insert-before-markers' 
overlay fix


Summary of changes:
 src/buffer.c             |  3 ++-
 src/itree.c              |  5 +++-
 test/src/buffer-tests.el | 61 +++++++++++++++++++++++++++++++-----------------
 3 files changed, 45 insertions(+), 24 deletions(-)