Added tests where parameters have initializers.

tests/cases/conformance/es6/destructuring/emptyArrayBindingPatternParameter04.ts

@@ -0,0 +1,5 @@
+
+
+function f([] = [1,2,3,4]) {
+    var x, y, z;
+}

tests/cases/conformance/es6/destructuring/emptyObjectBindingPatternParameter04.ts

@@ -0,0 +1,5 @@
+
+
+function f({} = {a: 1, b: "2", c: true}) {
+    var x, y, z;
+}