http://4comprehension.com/kotlin-type-inference-puzzler/ - took me way more than necessary to figure out this one in a real project 🙂

I've also made that mistake before. It does make sense, but that

=

is very powerful.

Actually, I feel that the problem is more because of

{ ... }

that can be used for declaring lambda expressions as well as standard code blocks

I’ve also fallen into this trap. Could there be an intelliJ warning for things like that?