Added target tests for namespacing

Author: matthew-dean

package.json

@@ -1,6 +1,6 @@
 {
   "name": "less",
-  "version": "3.0.0-RC.1",
+  "version": "4.0.0-alpha.1",
   "description": "Leaner CSS",
   "homepage": "http://lesscss.org",
   "author": {

test/css/namespacing.css

@@ -0,0 +1,7 @@
+.foo {
+  color: red;
+  color: red;
+  prop: bar;
+  var: baz;
+  sub: value;
+}

test/less/namespacing.less

@@ -0,0 +1,18 @@
+@varToGet: default-color;
+.foo {
+  color: @defaults[@default-color];
+  color: @defaults[@@varToGet];
+  prop: #ns1[foo];
+  var: #ns1[@foo];
+  sub: #ns1.vars[$sub];
+}
+@defaults: {
+  @default-color: red;
+};
+#ns1 {
+  foo: bar;
+  @foo: baz;
+  .vars() {
+    sub: value;
+  }
+}