Decompiler & stub builder fixed accordingly with new enum syntax.

Companion object now directly follows enum entries to avoid having them at the middle.
Some decompiler & stub builder tests fixed accordingly.

idea/testData/decompiler/decompiledText/Enum.expected.kt

@@ -3,10 +3,22 @@
 
 package test
 
-public final enum class Enum private () : kotlin.Enum<test.Enum>, dependency.Tr {
-    ONE
+internal final enum class Enum private () : kotlin.Enum<test.Enum> {
+    A
 
-    TWO
+    B
 
-    THREE
+    C
+
+    D
+
+    E
+
+    F
+
+    internal companion object {
+        internal final val c: kotlin.Int /* compiled code */
+    }
+
+    internal open fun f(): kotlin.Int { /* compiled code */ }
 }

idea/testData/decompiler/decompiledText/Enum/Enum.kt

@@ -2,11 +2,14 @@ package test
 
 import dependency.*
 
-public enum class Enum : Tr {
-    ONE
-    TWO
-    THREE {
-        fun g() {
-        }
+enum class Enum {
+    A B C D E F {
+        override fun f() = 4
     }
+
+    companion object {
+        val c: Int = 1
+    }
+
+    open fun f() = 3
 }

idea/testData/decompiler/stubBuilder/Enum/Enum.txt

@@ -37,6 +37,12 @@ PsiJetFileStubImpl[package=a.b.c.test.enum]
                       REFERENCE_EXPRESSION:[referencedName=enum]
                     REFERENCE_EXPRESSION:[referencedName=Enum]
     CLASS_BODY:
+      ENUM_ENTRY:[fqName=a.b.c.test.enum.Enum.A, isEnumEntry=true, isInterface=false, isLocal=false, isTopLevel=false, name=A, superNames=[]]
+      ENUM_ENTRY:[fqName=a.b.c.test.enum.Enum.B, isEnumEntry=true, isInterface=false, isLocal=false, isTopLevel=false, name=B, superNames=[]]
+      ENUM_ENTRY:[fqName=a.b.c.test.enum.Enum.C, isEnumEntry=true, isInterface=false, isLocal=false, isTopLevel=false, name=C, superNames=[]]
+      ENUM_ENTRY:[fqName=a.b.c.test.enum.Enum.D, isEnumEntry=true, isInterface=false, isLocal=false, isTopLevel=false, name=D, superNames=[]]
+      ENUM_ENTRY:[fqName=a.b.c.test.enum.Enum.E, isEnumEntry=true, isInterface=false, isLocal=false, isTopLevel=false, name=E, superNames=[]]
+      ENUM_ENTRY:[fqName=a.b.c.test.enum.Enum.F, isEnumEntry=true, isInterface=false, isLocal=false, isTopLevel=false, name=F, superNames=[]]
       OBJECT_DECLARATION:[fqName=a.b.c.test.enum.Enum.Companion, isCompanion=true, isLocal=false, isObjectLiteral=false, isTopLevel=false, name=Companion, superNames=[]]
         MODIFIER_LIST:[internal companion]
         CLASS_BODY:
@@ -47,12 +53,6 @@ PsiJetFileStubImpl[package=a.b.c.test.enum]
                 USER_TYPE:[isAbsoluteInRootPackage=false]
                   REFERENCE_EXPRESSION:[referencedName=kotlin]
                 REFERENCE_EXPRESSION:[referencedName=Int]
-      ENUM_ENTRY:[fqName=a.b.c.test.enum.Enum.A, isEnumEntry=true, isInterface=false, isLocal=false, isTopLevel=false, name=A, superNames=[]]
-      ENUM_ENTRY:[fqName=a.b.c.test.enum.Enum.B, isEnumEntry=true, isInterface=false, isLocal=false, isTopLevel=false, name=B, superNames=[]]
-      ENUM_ENTRY:[fqName=a.b.c.test.enum.Enum.C, isEnumEntry=true, isInterface=false, isLocal=false, isTopLevel=false, name=C, superNames=[]]
-      ENUM_ENTRY:[fqName=a.b.c.test.enum.Enum.D, isEnumEntry=true, isInterface=false, isLocal=false, isTopLevel=false, name=D, superNames=[]]
-      ENUM_ENTRY:[fqName=a.b.c.test.enum.Enum.E, isEnumEntry=true, isInterface=false, isLocal=false, isTopLevel=false, name=E, superNames=[]]
-      ENUM_ENTRY:[fqName=a.b.c.test.enum.Enum.F, isEnumEntry=true, isInterface=false, isLocal=false, isTopLevel=false, name=F, superNames=[]]
       FUN:[fqName=a.b.c.test.enum.Enum.f, hasBlockBody=true, hasBody=true, hasTypeParameterListBeforeFunctionName=false, isExtension=false, isTopLevel=false, name=f]
         MODIFIER_LIST:[open internal]
         VALUE_PARAMETER_LIST: