THRIFT-5593 Implement uuid for Haxe
Client: hx
Patch: Jens Geyer

Relies on https://github.com/flashultra/uuid/issues/4 being fixed, thus may require using the most recent uuid package from Github instead of the Haxelib package.
diff --git a/lib/haxe/test/src/StreamTest.hx b/lib/haxe/test/src/StreamTest.hx
index 4744272..3e70ada 100644
--- a/lib/haxe/test/src/StreamTest.hx
+++ b/lib/haxe/test/src/StreamTest.hx
@@ -18,6 +18,7 @@
  */
 
 package;
+#if sys
 
 import haxe.Int64;
 import sys.FileSystem;
@@ -95,3 +96,4 @@
 }
 
 
+#end