Assign extra bonus for previous move that caused a fail low more often
This patch allows to assign extra bonus for previous move that caused a fail low not only for PvNodes and cutNodes but also fo some allNodes - namely if the best result we could've got from the search is still far below alpha.
passed STC
https://tests.stockfishchess.org/tests/view/61aa26a49e8855bba1a36d96
LLR: 2.94 (-2.94,2.94) <0.00,2.50>
Total: 73808 W: 19183 L: 18842 D: 35783
Ptnml(0-2): 251, 8257, 19564, 8564, 268
passed LTC
https://tests.stockfishchess.org/tests/view/61aa7dc29e8855bba1a3814f
LLR: 2.94 (-2.94,2.94) <0.50,3.00>
Total: 142416 W: 36717 L: 36192 D: 69507
Ptnml(0-2): 106, 14799, 40862, 15346, 95
closes https://github.com/official-stockfish/Stockfish/pull/3835
bench 4724181