Filter out package members from other facades in KPackageImpl

#KT-10690 Fixed

compiler/testData/codegen/boxMultiFile/kt10690.kt

@@ -0,0 +1,24 @@
+// WITH_REFLECT
+// FILE: test.kt
+
+fun test2() {
+}
+
+// FILE: main.kt
+
+import kotlin.reflect.jvm.javaMethod
+import kotlin.reflect.jvm.kotlinFunction
+
+fun box(): String {
+    if (::box.javaMethod?.kotlinFunction == null)
+        return "Fail box"
+    if (::test1.javaMethod?.kotlinFunction == null)
+        return "Fail test1"
+    if (::test2.javaMethod?.kotlinFunction == null)
+        return "Fail test2"
+
+    return "OK"
+}
+
+fun test1() {
+}