[Rule Request] Conditional checks itselft

[masters3d]

Rule Request

1. Why should this rule be added? Share links to existing discussion about what
   the community thinks about this.
   Rule request: No explicit == true or == false #1502 (comment)

2. Provide several examples of what would and wouldn't trigger violations.

if someObj == someObj {} // always true
if objA != objA {} // always false

This would not trigger even though they might have the same value. :

let someObj2 = someObj 
if someObj2 == someObj {} // always true

3. Should the rule be configurable, if so what parameters should be configurable?
   probably not.

4. Should the rule be opt-in or enabled by default? Why?
   See README.md for guidelines on when to mark a
   rule as opt-in.
   Probably Default if fast enough.

[marcelofabri]

Duplicate of #1371?

[masters3d]

ha! totally, I just could not find it.