Resolve static enum members from compiled Java

For static members, a corresponding package is now created for every enum, as
it's done for every other class. All static members of enum classes are
resolved into the package, EXCEPT its enum entries, valueOf() and values()
methods, which are put into the enum's class descriptor.

compiler/testData/loadJava/compiledJava/annotations/CustomAnnotation.txt

@@ -24,6 +24,3 @@ public trait CustomAnnotation : java.lang.Object {
         public constructor MyTest()
     }
 }
-
-package CustomAnnotation {
-}

compiler/testData/loadJava/compiledJava/static/StaticMembersInEnum.java

@@ -0,0 +1,12 @@
+package test;
+
+public enum StaticMembersInEnum {
+    ENTRY;
+
+    public static void foo() { }
+    public static void values(int x) { }
+    public static void valueOf(int x) { }
+    
+    public static int STATIC_FIELD = 42;
+    public static final StaticMembersInEnum CONSTANT = ENTRY;
+}

compiler/testData/loadJava/compiledJava/static/StaticMembersInEnum.txt

@@ -0,0 +1,22 @@
+package test
+
+public final enum class StaticMembersInEnum : jet.Enum<test.StaticMembersInEnum> {
+    private constructor StaticMembersInEnum()
+    public final override /*1*/ /*fake_override*/ fun name() : jet.String
+    public final override /*1*/ /*fake_override*/ fun ordinal() : jet.Int
+    
+    public class object <class-object-for-StaticMembersInEnum> {
+        private constructor <class-object-for-StaticMembersInEnum>()
+        public final val ENTRY : test.StaticMembersInEnum
+        public final fun valueOf(/*0*/ value : jet.String) : test.StaticMembersInEnum
+        public final fun values() : jet.Array<test.StaticMembersInEnum>
+    }
+}
+
+package StaticMembersInEnum {
+    public val CONSTANT : test.StaticMembersInEnum
+    public var STATIC_FIELD : jet.Int
+    public open fun foo() : Unit
+    public open fun valueOf(/*0*/ p0 : jet.Int) : Unit
+    public open fun values(/*0*/ p0 : jet.Int) : Unit
+}