fix(menu): Rename test files

[williamernest]

No description provided.

[codecov-io]

Codecov Report

Merging #2168 into master will increase coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2168      +/-   ##
==========================================
+ Coverage   99.13%   99.14%   +<.01%     
==========================================
  Files          90       90              
  Lines        3830     3840      +10     
  Branches      496      495       -1     
==========================================
+ Hits         3797     3807      +10     
  Misses         33       33

Impacted Files	Coverage Δ
packages/mdc-select/foundation.js	100% <0%> (ø)	⬆️
packages/mdc-checkbox/index.js	100% <0%> (ø)	⬆️
packages/mdc-ripple/foundation.js	100% <0%> (ø)	⬆️
packages/mdc-icon-toggle/index.js	100% <0%> (ø)	⬆️
packages/mdc-menu/constants.js	100% <0%> (ø)	⬆️
packages/mdc-ripple/index.js	100% <0%> (ø)	⬆️
packages/mdc-menu/foundation.js	99.35% <0%> (ø)	⬆️
packages/mdc-menu/index.js	93.97% <0%> (+0.07%)	⬆️
packages/mdc-radio/index.js	97.67% <0%> (+0.23%)	⬆️

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[kfranqueiro]

This is presumably conflicting now due to merging #1756. Not sure if it's simpler to just re-do the rename from master now.