[FIR-TEST] Add new testdata generated after changes in previous commit

compiler/testData/diagnostics/tests/enum/modifiersOnEnumEntry.fir.kt

@@ -0,0 +1,23 @@
+enum class E {
+    public final SUBCLASS {
+        fun foo() {}
+    },
+
+    public PUBLIC,
+    protected PROTECTED,
+    private PRIVATE,
+    internal INTERNAL,
+
+    abstract ABSTRACT,
+    open OPEN,
+    override OVERRIDE,
+    final FINAL,
+
+    inner INNER,
+    annotation ANNOTATION,
+    enum ENUM,
+    out OUT,
+    in IN,
+    vararg VARARG,
+    reified REIFIED
+}