Enum deprecated syntax detection implemented and integrated into DeclarationsChecker.

A lot of tests was changed to refactor deprecated syntax. Six new tests were added to check deprecated syntax detection.
Diagnostic for "enum entry uses deprecated super constructor": constructor is highlighted
Diagnostic for "enum entry uses deprecated or no delimiter".
One warning removed.

compiler/testData/diagnostics/tests/enum/enumEntryCannotHaveClassObject.kt

@@ -1,11 +1,11 @@
 enum class E {
-    FIRST
+    FIRST,
 
     SECOND {
         <!COMPANION_OBJECT_NOT_ALLOWED!>companion<!> object {
             fun foo() = 42
         }
-    }
+    };
 }
 
 fun f() = E.SECOND.<!UNRESOLVED_REFERENCE!>foo<!>()