Switch kotlin version to 1.7

* Change 1.6 to 1.7 constants
* Fix SAFE_CALL_WILL_CHANGE_NULLABILITY for testData
* Change EXPOSED_PROPERTY_TYPE_IN_CONSTRUCTOR_WARNING to EXPOSED_PROPERTY_TYPE_IN_CONSTRUCTOR_ERROR
* Change NON_EXHAUSTIVE_WHEN_STATEMENT to NO_ELSE_IN_WHEN
* Fix testData for SafeCallsAreAlwaysNullable
* Change T -> T & Any in test dumps
* Change INVALID_CHARACTERS_NATIVE_WARNING -> INVALID_CHARACTERS_NATIVE_ERROR
* TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM_WARNING -> TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM_ERROR

compiler/testData/diagnostics/tests/regressions/Jet72.kt

@@ -14,7 +14,7 @@ fun test(room : <!PLATFORM_CLASS_MAPPED_TO_KOTLIN!>Object<!>) {
   for(item: Item? in items) {
     if (item?.room === room) {
       // item?.room is not null
-      System.out.println("You see " + <!SAFE_CALL_WILL_CHANGE_NULLABILITY!>item<!UNNECESSARY_SAFE_CALL!>?.<!>name<!>)
+      System.out.println("You see " + item<!UNNECESSARY_SAFE_CALL!>?.<!>name)
     }
   }
 }