6563752: Build and test JDK7 with Sun Studio 12 Express compilers (prep makefiles) Summary: Allows for building with SS12, no longer requires SS11, warns if not SS11 for now. Once SS12 is validated and performance measurements look ok, SS12 will be the validated compiler. Reviewed-by: sspitsyn, ikrylov

9a66ca7c79fab293c1bb0534e0d208c7e4f58b01 jdk7-b24
58039502942e52f4144a33f36290a2bd2f3581e6 jdk7-b25