Making more tests work on windows.

* new/builtin.jam: The lib suffix in not "obj", even on windows.

* test/BoostBuild.py: (lib_suffix): New variable.
* test/generators_test.py: Use lib_suffix.


[SVN r16793]

tools/build

@@ -1 +1 @@
-Subproject commit edde5bee2d0e4025b3c95067535c76cd6d31047e
+Subproject commit 8e665325a7bf69c1ba2727547f7139897ef9a523