FIR Java model: support static members & enum entries

Related to KT-29218

compiler/testData/loadJava/compiledJava/enum/EnumMembers.fir.txt

@@ -1,4 +1,10 @@
 public final enum class EnumMembers : R|java/lang/Enum<test/EnumMembers>| {
+    public final static property FIRST(val): R|ft<test/EnumMembers, test/EnumMembers?>|!
+        public get(): R|ft<test/EnumMembers, test/EnumMembers?>|!
+
+    public final static property SECOND(val): R|ft<test/EnumMembers, test/EnumMembers?>|!
+        public get(): R|ft<test/EnumMembers, test/EnumMembers?>|!
+
     public final property isFirst(val): R|kotlin/Boolean|
         public get(): R|kotlin/Boolean|
 

compiler/testData/loadJava/compiledJava/enum/EnumWithSpecializedEntry.fir.txt

@@ -1,2 +1,8 @@
 public open enum class EnumWithSpecializedEntry : R|java/lang/Enum<test/EnumWithSpecializedEntry>| {
+    public final static property E1(val): R|ft<test/EnumWithSpecializedEntry, test/EnumWithSpecializedEntry?>|!
+        public get(): R|ft<test/EnumWithSpecializedEntry, test/EnumWithSpecializedEntry?>|!
+
+    public final static property E2(val): R|ft<test/EnumWithSpecializedEntry, test/EnumWithSpecializedEntry?>|!
+        public get(): R|ft<test/EnumWithSpecializedEntry, test/EnumWithSpecializedEntry?>|!
+
 }

compiler/testData/loadJava/compiledJava/enum/JavaEnum.fir.txt

@@ -1,2 +1,8 @@
 public final enum class JavaEnum : R|java/lang/Enum<test/JavaEnum>| {
+    public final static property ENTRY(val): R|ft<test/JavaEnum, test/JavaEnum?>|!
+        public get(): R|ft<test/JavaEnum, test/JavaEnum?>|!
+
+    public final static property ANOTHER(val): R|ft<test/JavaEnum, test/JavaEnum?>|!
+        public get(): R|ft<test/JavaEnum, test/JavaEnum?>|!
+
 }