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/controlFlowAnalysis/UninitializedOrReassignedVariables.kt

@@ -71,11 +71,11 @@ fun t1() {
 enum class ProtocolState {
   WAITING {
     override fun signal() = ProtocolState.TALKING
-  }
+  },
 
   TALKING {
     override fun signal() = ProtocolState.WAITING
-  }
+  };
 
   abstract fun signal() : ProtocolState
 }

compiler/testData/diagnostics/tests/controlFlowAnalysis/kt1185enums.kt

@@ -3,9 +3,9 @@
 package kt1185
 
 enum class Direction {
-    NORTH
-    SOUTH
-    WEST
+    NORTH,
+    SOUTH,
+    WEST,
     EAST
 }
 
@@ -16,9 +16,9 @@ class A {
 }
 
 enum class Color(val rgb : Int) {
-    RED : Color(0xFF0000)
-    GREEN : Color(0x00FF00)
-    BLUE : Color(0x0000FF)
+    RED(0xFF0000),
+    GREEN(0x00FF00),
+    BLUE(0x0000FF)
 }
 
 fun foo(d: Direction) = when(d) { //no 'else' should be requested