Drop old enum syntax. Comma / semicolon are now a syntactic part of enum entry.

Comma must present now between enum entries, semicolon between last entry & first member, constructor calls must be without colons / specifiers.
A swarm of tests fixed accordingly.

idea/testData/formatter/EmptyLineAfterObjectDeclaration.after.kt

@@ -30,6 +30,7 @@ interface T1
 
 enum class E1 {
     ENTRY;
+
     object O7
 }
 
@@ -67,6 +68,7 @@ interface T2
 
 enum class E2 {
     ENTRY;
+
     object O14 {}
 }
 
@@ -109,6 +111,7 @@ interface T3
 
 enum class E3 {
     ENTRY;
+
     object O21 {
     }
 }

idea/testData/formatter/EmptyLineBetweenEnumEntries.after.kt

@@ -23,5 +23,6 @@ enum class E6 {
 enum class E7 {
     F {
 
-    }, S, T
+    },
+    S, T
 }

idea/testData/formatter/SpaceAroundExtendColonInEnums.after.inv.kt

@@ -1,10 +0,0 @@
-enum class Test: A {
-    FIRST: Test()
-    SECOND:
-            Test()
-
-    THIRD: Test() FORTH: Test()
-}
-
-// SET_TRUE: SPACE_BEFORE_EXTEND_COLON
-// SET_FALSE: SPACE_AFTER_EXTEND_COLON

idea/testData/formatter/SpaceAroundExtendColonInEnums.after.kt

@@ -1,10 +0,0 @@
-enum class Test :A {
-    FIRST :Test()
-    SECOND :
-            Test()
-
-    THIRD :Test() FORTH :Test()
-}
-
-// SET_TRUE: SPACE_BEFORE_EXTEND_COLON
-// SET_FALSE: SPACE_AFTER_EXTEND_COLON

idea/testData/formatter/SpaceAroundExtendColonInEnums.kt

@@ -1,10 +0,0 @@
-enum class Test   :   A {
-    FIRST    :    Test()
-    SECOND:
-    Test()
-
-    THIRD: Test() FORTH: Test()
-}
-
-// SET_TRUE: SPACE_BEFORE_EXTEND_COLON
-// SET_FALSE: SPACE_AFTER_EXTEND_COLON