In runsuite_common_pre.cmake (thus, all test suites and package builds), use the most recent Visual Studio version that is installed. Added a generator= arg so an older version can be selected.
In runsuite_common_pre.cmake (thus, all test suites and package
builds), use the most recent Visual Studio version that is installed.
Added a generator= arg so an older version can be selected.

git-svn-id: ed337ca7cdb08c0ba29d8fe58632bb7686892c2d@1666 49cc7528-f6fd-11dd-9d1a-b59b2e1864b6

rnk/dynamorio,rnk/dynamorio,rnk/dynamorio,rnk/dynamorio,rnk/dynamorio