All edit mode related operators are now "Hide Selected / Reveal Hidden".
Before we had different variatons of them:
Hide Selection:
* MESH_OT_hide
* GPENCIL_OT_selection_opacity_toggle
Hide Selected Bones:
* ARMATURE_OT_hide
Hide:
* MBALL_OT_hide_metaelems
Hide Selected:
* CURVE_OT_hide
* PARTICLE_OT_hide
* POSE_OT_hide
* UV_OT_hide
Reveal Bones:
* ARMATURE_OT_reveal
Reveal:
* MBALL_OT_reveal_metaelems
Operators not renamed:
* Hide Curves (GRAPH_OT_hide)
* Hide (OUTLINER_OT_hide)
Note we can do a step further and mass rename them to match their UI
names. Where Reveal Hidden is Show Hidden. But for now at least they are
all unified.