Update swap test to core.

status/Jamfile.v2

@@ -68,6 +68,7 @@ run-tests libs :
     context/test                # test-suite context
     conversion/test             # test-suite conversion
     core/test                   # test-suite core
+    core/test/swap              # test-suite core/swap
     coroutine/test              # test-suite coroutine
     crc/test                    # test-suite crc
     date_time/test              # test-suite date_time
@@ -166,7 +167,6 @@ run-tests libs :
     unordered/test/exception    # test-suite unordered-exception
     utility/enable_if/test      # test-suite utility/enable_if
     utility/identity_type/test  # test-suite utility/identity_type
-    utility/swap/test           # test-suite utility/swap
     utility/test                # test-suite utility
     uuid/test                   # test-suite uuid
     variant/test                # test-suite variant