Support platformStatic for properties

#KT-5766 Fixed

compiler/testData/compileJavaAgainstKotlin/platformStatic/simpleClassObjectProperty.kt

@@ -0,0 +1,21 @@
+package test
+
+import kotlin.platform.platformStatic
+
+class A {
+    class object {
+        [platformStatic] val b: String = "OK"
+
+        var A.c: String
+            [platformStatic] get() = "OK"
+            [platformStatic] set(t: String) {}
+    }
+}
+
+fun main(args: Array<String>) {
+    A.b
+    with(A) {
+        A().c
+        A().c = "123"
+    }
+}