When we could use perform expression?

[macabeus]

At this moment, we could use perform only in three situations:

• ExpressionStatement: perform 'foo'
• AssignmentExpression: a = perform 'foo'
• VariableDeclarator: let a = perform 'foo'

So we can't do something like: (perform 'foo') + 1, because it's a BinaryExpression.

But do we really need to maintain this behaviour?
If not, how would be the precedence?

[luizperes]

In my opinion perform should be an expression that "wraps" another expression, the way it is right now looks fine to me, so it would enforce the use of return