Support 'accessible' for reflected properties on JVM

Calls Java reflection's isAccessible/setAccessible

compiler/testData/codegen/boxWithStdlib/callableReference/property/protectedClassVar.kt

@@ -0,0 +1,28 @@
+import kotlin.reflect.jvm.accessible
+
+class A(param: String) {
+    protected var v: String = param
+
+    fun ref() = ::v
+}
+
+fun box(): String {
+    val a = A(":(")
+    val f = a.ref()
+
+    try {
+        f.get(a)
+        return "Fail: protected property getter is accessible by default"
+    } catch (e: IllegalAccessException) { }
+
+    try {
+        f.set(a, ":D")
+        return "Fail: protected property setter is accessible by default"
+    } catch (e: IllegalAccessException) { }
+
+    f.accessible = true
+
+    f.set(a, ":)")
+
+    return if (f[a] != ":)") "Fail: ${f[a]}" else "OK"
+}