repoview: avoid processing the same rev twice in _getstatichidden If a rev had multiple children, it would be added to the heap multiple times. We now ensure it is added only once.

repoview: skip public parent earlier in _getstatichidden Public changeset have nothing to offer regarding hidden changeset. Lets not add them to the heap at all.

repoview: directly skip public head in _getstatichidden Public heads have nothing to offer regarding hidden stuff, let's skip them.

repoview: simplify process in _getstatichidden Since all children are processed before their parents, we can apply the following algorithm: For each rev (descending order): * If I'm still hidden, no children will block me, * If I'm not hidden, I must remove my parent from the hidden set, This allows us to dynamically change the set of 'hidden' revisions, dropping the need for the 'actuallyhidden' dictionary and the 'blocked' boolean in the queue. As before, we start iterating from all heads and stop at the first public changesets. This ensures the hidden computation is 'O(not public())' instead of 'O(len(min(not public()):))'.

repoview: use a heap in _getstatichidden Since we want to process all non-public changesets from top to bottom, a heap seems more appropriate. This will ensure any revision is processed after all its children, opening the way to code simplification.

repoview: update documentation of _getstatichidden In 2f7cb6e6acdd, the function name, role and return was changed. But the documentation was not. This fixes it.

ssl: resolve symlink before checking for Apple python executable (issue4588) test-https.t was broken at 07fafcd4bc74 if /usr/bin/pythonX.Y is used on Mac OS X. If python executable is not named as "python", run-tests.py creates a symlink and hghave uses it. On the other hand, the installed hg executable knows the real path to the system Python. Therefore, there was an inconsistency that hghave said it was not an Apple python but hg knew it was.

test-subrepo-recursion: fix output on non-hardlink systems There's a slight bug present where a topic doesn't get closed when it should. This isn't a regression, so I've made a note in the test file.

test-subrepo-recursion: set progress.changedelay really high This avoids subtopics from showing up, which were introduced by my recent change that added progress bars to hardlink clones in some cases.

test-clone: fix test expectations on systems without hardlinks