The titles a bit average, but this relates a bit to #1475.

Basically, because of the overlap of memberLike & method, it's not possible to have allow properties that are assigned functions to have the PascelCase format without allowing public methods on classes to have that format too.

Repro

{
  "rules": {
    "@typescript-eslint/naming-convention": ["error", 
       { "selector": "memberLike", "format": ["camelCase"] },
       { "selector": "property", "format": ["camelCase", "PascalCase"] }
    ]
  }
}

class MyClass {
  public MyMethod(): void {
    //
  }
}

const o = {
  Literal(node): void {
    //
  }
};

Expected Result
MyClass#MyMethod is flagged as not being camelcase, while o#Literal is fine.

Actual Result
Both MyMethod & Literal are flagged as not being in camelcase.

Additional Info

Versions

Also tried against canary.