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)
     }
   }
 }

compiler/testData/diagnostics/tests/regressions/SpecififcityByReceiver.fir.kt

@@ -4,6 +4,6 @@ fun main() {
 
     val command : Any = 1
 
-    <!SAFE_CALL_WILL_CHANGE_NULLABILITY!>command<!UNNECESSARY_SAFE_CALL!>?.<!>equals(null)<!>
+    command<!UNNECESSARY_SAFE_CALL!>?.<!>equals(null)
     command.equals(null)
 }

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

@@ -4,6 +4,6 @@ fun main() {
 
     val command : Any = 1
 
-    <!SAFE_CALL_WILL_CHANGE_NULLABILITY!>command<!UNNECESSARY_SAFE_CALL!>?.<!>equals(null)<!>
+    command<!UNNECESSARY_SAFE_CALL!>?.<!>equals(null)
     command.equals(null)
 }

compiler/testData/diagnostics/tests/regressions/kt701.kt

@@ -7,7 +7,7 @@ public class Throwables() {
         public fun <X : Throwable?> propagateIfInstanceOf(throwable : Throwable?, declaredType : Class<X?>?) {
             if (((throwable != null) && declaredType?.isInstance(throwable)!!))
             {
-                throw <!SAFE_CALL_WILL_CHANGE_NULLABILITY!>declaredType<!UNNECESSARY_SAFE_CALL!>?.<!>cast(throwable)<!>!!
+                throw declaredType<!UNNECESSARY_SAFE_CALL!>?.<!>cast(throwable)!!
             }
         }
         public fun propagateIfPossible(throwable : Throwable?) {