There are multiple ways to declare a named variable-like entity in
Kotlin:
1. val/var variable declaration
2. destructuring declaration
3. parameter of a function
4. parameter of a lambda
5. destructured lambda parameter
6. for-loop's variable declaration
7. catch block exception declaration
8. val in when
9. field declaration
Out of them, only variable and field can be assignable, in other words,
they can be on the left hand side of an assignment.
Val/var variable declarations were already supported.
So, we needed to just support field initialization and tell the backend
that other ways are prohibited. Function and lambda parameters were
already been supported. So, the only thing to explain to the backend are
remaining ways.
#KT-39113 Fixed
#KT-34048 Fixed
Svyatoslav Kuzmich