ben-manes / caffeine / #5625

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Baseline swept climbers from their own percent-main

IndicatorClimber and MiniSimClimber set their starting window from
settings.percentMain().getFirst(), but HillClimberWindowTinyLfuPolicy
builds one policy per percent-main element and hands each its own
value. A climber for any element after the first therefore dead-
reckoned its window adaptations from the first element's baseline and
never corrected, so a percent-main sweep produced wrong curves for
every point but the first (the default single-element [0.99] masked
it).

Thread the per-instance percentMain through HillClimberType.create so
each climber baselines from its own element. The eight dead-reckoning
climbers ignore it; only the two absolute-target climbers use it. The
default is byte-identical (create(0.99, ...) still yields 1 - 0.99);
only multi-element sweeps change. Ad hoc loop/corda checks: swept
starts now converge to the climber's intended window (loop minisim at
an 80%-window start 9.9% -> 45.9%) instead of stranding at the wrong
baseline.

4139 of 4150 branches covered (99.73%)

2 of 2 new or added lines in 1 file covered. (100.0%)

8411 of 8412 relevant lines covered (99.99%)

1.0 hits per line