KT-2752: fix JsName with explicit use target. Add some tests for JsName with use targets

js/js.translator/testData/box/propertyAccess/defaultAccessorsWithJsName.kt

@@ -0,0 +1,31 @@
+package foo
+
+class A {
+    @get:JsName("getX_") val x = 23
+
+    @get:JsName("getY_") @set:JsName("setY_") var y = 0
+
+    @JsName("z_") var z = 0
+}
+
+fun box(): String {
+    val a = A()
+
+    assertEquals(23, a.x)
+    assertEquals(0, a.y)
+    a.y = 42
+    assertEquals(42, a.y)
+    a.z = 99
+    assertEquals(99, a.z)
+
+    val d: dynamic = A()
+
+    assertEquals(23, d.getX_())
+    assertEquals(0, d.getY_())
+    d.setY_(42)
+    assertEquals(42, d.getY_())
+    d.z_ = 99
+    assertEquals(99, d.z_)
+
+    return "OK"
+}