JVM IR: generate private @JvmStatic functions as in old backend

#KT-46181 Fixed

compiler/testData/codegen/bytecodeListing/jvmStatic/kt31389.kt

@@ -0,0 +1,12 @@
+// JVM_TARGET: 1.8
+// WITH_RUNTIME
+
+annotation class Annotation {
+    companion object {
+        @JvmStatic val TEST_FIELD = "OK"
+
+        var TEST_FIELD2 = ""
+            @JvmStatic get
+            @JvmStatic set
+    }
+}