[wip] some static usemethod support

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Here are some stats for your PR:

• WARNING: the longest CI job tests_debug2 took 2.85h
• real_thing suite regressed by 0.97
• Bounce_nonames_simple regressed by 0.92
• convolution_slow regressed by 0.93
• Overall benchmarks improved by 1.01

Please find your performance results at https://rir-benchmarks.prl.fit.cvut.cz/diff?job_ids[]=1444685295&job_ids[]=1432940244&selection=all

[o-]

Here are some stats for your PR:

• WARNING: the longest CI job test_features_2 took 3.27h
• are-we-fast-r suite regressed by 0.96
• Bounce_nonames_simple regressed by 0.84
• fasta_naive regressed by 0.92
• reversecomplement regressed by 0.95
• scalarFor regressed by 0.93
• Overall benchmarks improved by 1.0

Please find your performance results at https://rir-benchmarks.prl.fit.cvut.cz/diff?job_ids[]=1464475638&job_ids[]=1464454453&selection=all

[o-]

Here are some stats for your PR:

• WARNING: the longest CI job test_features_2 took 3.32h
• are-we-fast-r suite improved by 1.02
• shootout suite improved by 1.03
• convolution_slow regressed by 0.9
• flexclust regressed by 0.95
• Overall benchmarks improved by 1.01

Please find your performance results at https://rir-benchmarks.prl.fit.cvut.cz/diff?job_ids[]=1465878849&job_ids[]=1464454453&selection=all