Minor refactoring of binary numeric promotion

[jlerbsc]

No description provided.

[codecov]

Codecov Report

Merging #2915 (63e2cc2) into master (1526075) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2915   +/-   ##
=======================================
  Coverage   52.21%   52.21%           
=======================================
  Files         438      438           
  Lines       23436    23436           
  Branches     3535     3535           
=======================================
  Hits        12238    12238           
  Misses      10286    10286           
  Partials      912      912           

Flag	Coverage Δ
AlsoSlowTests	52.21% <ø> (ø)
jdk-10	52.21% <ø> (ø)
jdk-11	52.21% <ø> (ø)
jdk-12	52.21% <ø> (ø)
jdk-13	52.21% <ø> (ø)
jdk-14	52.21% <ø> (ø)
jdk-15	52.21% <ø> (ø)
jdk-8	52.21% <ø> (ø)
jdk-9	52.21% <ø> (ø)
macos-latest	52.20% <ø> (ø)
ubuntu-latest	52.20% <ø> (-0.01%)	⬇️
windows-latest	52.20% <ø> (ø)

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