tests: explicitly use ls profiler In preparation for making the statprof profiler the default.

statprof: pass data structure to display functions Currently, statprof maintains a global "state" variable that is used by several functions. Global variables hinder adaptability of code. So pass state to display functions so we can make changes to how "state" works in future patches.

statprof: use print function

statprof: use absolute_imports As part of this, we modify import order to satisfy our import checker.

statprof: require paths to save or load profile data Upstream appears to aggressively save statprof data in a well-defined home directory path. Change the code to not do that. We also change file saving to fail if an error has occurred instead of silently failing. Callers can catch the exception. This behavior is more suitable for a generic "library" module.

statprof: fix flake8 warnings My local flake8 hook informed me of these warnings in the upstream code. Fix them.

statprof: vendor statprof.py Vendored from https://bitbucket.org/facebook/hg-experimental changeset 73f9db47ae5a1a9fa29a98dfe92d557ad51234c3 without modification. This introduces a number of code style violations. The file already has the magic words to skip test-check-code.t. I'll make additional changes to clean up the test-check-py3-compat.t warnings and to change some behavior in the code that isn't suitable for general use. test-check-commit.t also complains about numerous things. But there's nothing we can do if we're importing as-is.

merge with stable

Added signature for changeset eab274469952

Added tag 4.0 for changeset eab274469952