notify: add option to include function names in the diff output This is a localized version of diff.showfunc. Differential Revision: https://phab.mercurial-scm.org/D3553

tests: update py3 test since json fields are now sorted The fields have been sorted since 814151cd8c4a (logcmdutil: rewrite jsonchangeset printer to be backed by jsonformatter, 2018-04-13), and the test case has thus been failing since that commit. Differential Revision: https://phab.mercurial-scm.org/D3570

tests: test-parseindex.t works just fine with chg In 538e850ae737 I annotated tests that failed with chg with "#require no-chg", but did not investigate why the tests were failing. This test was failing for unrelated reasons (I forgot to rebuild hg) and so should not be marked as no-chg. Test Plan: make local pushd contrib/chg make clean; make popd cd tests for f in '' --with-chg=../contrib/chg/chg; do ./run-tests.py --local $f test-parseindex.t done Differential Revision: https://phab.mercurial-scm.org/D3571