highlights(hack): extend queries add tests

tests/query/highlights/hack/use.hack

@@ -0,0 +1,28 @@
+use const Space\Const\C;
+//  ^ keyword
+//                    ^ constant
+use function Space\Func\F as E;
+//                           ^ function
+//                      ^ function
+use type Space\Type\T;
+//  ^ keyword
+use namespace Space\Name\N as M;
+//  ^ keyword
+//             ^ namespace
+
+use namespace Space\Name2\N2, Space\Nothing\N3 as N8, type Space\Type2\N4,;
+//                        ^ namespace
+//                                                                      ^ type
+use namespace Space\Name\N10\{A as A2, B\};
+//                        ^ namespace
+//                                     ^ namespace
+//                                 ^ namespace
+use namespace Space\Name\{\C, Slash as Forward};
+
+use \What\Is\This\{function A as A2, B, const H\S\L as stdlib, function F};
+
+use type \{kind,};
+use Q\B\{kind2,};
+//    ^ namespace
+use type Q\B\{kind3,};
+// <- include