JVM IR: Handle overloaded values functions in MappedEnumWhenLowering

Fixes KT-46579.

compiler/testData/codegen/box/enum/overloadedEnumValuesStatic.kt

@@ -0,0 +1,25 @@
+// TARGET_BACKEND: JVM
+// WITH_RUNTIME
+
+enum class E {
+    A;
+
+    companion object {
+        @JvmStatic
+        fun values(): Array<String> = arrayOf("OK")
+
+        @JvmStatic
+        fun E.values(): Array<E> = arrayOf(A)
+
+        @JvmStatic
+        fun values(x: Int): Array<E> = arrayOf(A)
+    }
+}
+
+fun f(e: E) = when (e) {
+    E.A -> "OK"
+}
+
+fun box(): String {
+    return f(E.A)
+}