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/ir/irText/expressions/implicitCastToNonNull.kt.txt

@@ -15,7 +15,7 @@ fun <T : CharSequence?> test2(x: T): Int {
 inline fun <reified T : CharSequence?> test3(x: Any): Int {
   return when {
     x !is T -> 0
-    else -> x /*as T */.<get-length>()
+    else -> x /*as (T & Any) */.<get-length>()
   }
 }
 
@@ -31,3 +31,4 @@ fun <T : S?, S : Any?> test5(x: T, fn: Function1<S, Unit>) {
     EQEQ(arg0 = x, arg1 = null).not() -> fn.invoke(p1 = x)
   }
 }
+