Add base testcase and uncomment test262 tests that pass now for Array…

….prototype.sort

tests/semantics/builtin/15.4/15.4.4/15.4.4.11/15.4.4.11_BASE.js

@@ -0,0 +1,11 @@
+var x = new Array(2,3,1)
+x.sort()
+
+var __result1 = x[0] === 1
+var __expect1 = true
+
+var __result2 = x[1] === 2
+var __expect2 = true
+
+var __result3 = x[2] === 3
+var __expect3 = true