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.

idea/testData/checker/ClassObjectInEnum.kt

@@ -1,5 +1,5 @@
 enum class E {
-    ENTRY
+    ENTRY;
 
     companion object {
         fun foo(): E = ENTRY

idea/testData/checker/Redeclaration.kt

@@ -5,7 +5,7 @@ val <error>a</error> : Int = 1
 <error>fun foo()</error> {}
 
 enum class EnumClass {
-    <error>FOO</error>
+    <error>FOO</error>,
     <error>FOO</error>
 }
 

idea/testData/checker/WhenInEnumInExtensionProperty.kt

@@ -1,7 +1,7 @@
 // KT-3750 When without else
 
 enum class A {
-    e1
+    e1,
     e2
 }
 class B(val a: A)

idea/testData/checker/regression/Jet183-1.kt

@@ -1,11 +1,11 @@
 enum class ProtocolState {
   WAITING {
     override fun signal() = ProtocolState.TALKING
-  }
+  },
 
   TALKING {
     override fun signal() = ProtocolState.WAITING
-  }
+  };
 
   abstract fun signal() : ProtocolState
 }

idea/testData/checker/regression/Jet183.kt

@@ -1,11 +1,11 @@
 enum class ProtocolState {
   WAITING {
     override fun signal() = ProtocolState.TALKING
-  }
+  },
 
   TALKING {
     override fun signal() = ProtocolState.WAITING
-  }
+  };
 
   abstract fun signal() : ProtocolState
 }