Fix mapping of jvmStatic functions

#KT-8800 Fixed

compiler/testData/codegen/boxWithStdlib/reflection/mapping/platformStatic/companionObjectFunction.kt

@@ -0,0 +1,33 @@
+import kotlin.platform.platformStatic as static
+import kotlin.reflect.jvm.*
+import kotlin.test.assertEquals
+import kotlin.test.failsWith
+
+class C {
+    companion object {
+        @static fun foo(s: String): Int = s.length()
+    }
+}
+
+fun box(): String {
+    val foo = C.Companion::foo
+
+    val j = foo.javaMethod ?: return "Fail: no Java method found for C::foo"
+    assertEquals(3, j.invoke(C, "abc"))
+
+    val k = j.kotlinFunction ?: return "Fail: no Kotlin function found for Java method C::foo"
+    assertEquals(3, k.call(C, "def"))
+
+
+    val staticMethod = javaClass<C>().getDeclaredMethod("foo", javaClass<String>())
+    val k2 = staticMethod.kotlinFunction ?:
+             return "Fail: no Kotlin function found for static bridge for @jvmStatic method in companion object C::foo"
+    assertEquals(3, k2.call(C, "ghi"))
+
+    failsWith(javaClass<NullPointerException>()) { k2.call(null, "")!! }
+
+    val j2 = k2.javaMethod
+    assertEquals(j, j2)
+
+    return "OK"
+}

compiler/testData/codegen/boxWithStdlib/reflection/mapping/platformStatic/objectFunction.kt

@@ -0,0 +1,19 @@
+import kotlin.platform.platformStatic as static
+import kotlin.reflect.jvm.*
+import kotlin.test.assertEquals
+
+object O {
+    @static fun foo(s: String): Int = s.length()
+}
+
+fun box(): String {
+    val foo = O::foo
+
+    val j = foo.javaMethod ?: return "Fail: no Java method found for O::foo"
+    assertEquals(3, j.invoke(null, "abc"))
+
+    val k = j.kotlinFunction ?: return "Fail: no Kotlin function found for Java method O::foo"
+    assertEquals(3, k.call(O, "def"))
+
+    return "OK"
+}