Predictability estimation algorithm is completely new, but backward compatibility should present.
A large set of tests. Some updated tests.
Smart casts allowed for captured variables if they are not modified in closure #KT-9051 Fixed
Also #KT-8643 Fixed
Also #KT-7976 Fixed
Correct handling of lambda arguments in functions #KT-9143 Fixed
Instead of manually checking nullability when reporing UNSAFE_CALL_ERROR
just check if receiver type is subtype of receiver parameter
Make it in two steps
1. Check subtype with respect to smart casts but ignoring nullability (if it's not satisfied -> ERROR)
2. Check subtype with respect to nullability and smartcasts (record latter if needed)
isLocalVariable added. Assignment / initialization analysis.
Control whether a variable is changed in a loop at the beginning and at the end of the loop.
Control whether a variable is captured in a closure. #KT-3175 Fixed. #KT-2266 Fixed.
Tests for variable null safety and for variables is/as operations.
Loop / closure / variable property tests are included.
Old tests changed in accordance with KT-3175. In particular, all three of testSmartcastImpossible were fixed.
Mikhail Glukhikh