Moved common variables to fixture; replaced macro-based fixture inner-types with a class template; changed basic test suite from test function to a test suite surrounding a test function template.

[SVN r32151]

libs/rational

@@ -1 +1 @@
-Subproject commit f48c36e6e7fac7b8c7732328be7ffa96adbc0c6a
+Subproject commit f007e39af589ccd041565d1be4b0158cdf813fb2