p12475.C: Use LONG_MAX to find the constant to test.

p12475.C: Use LONG_MAX to find the constant to test.

        * g++.old-deja/g++.benjamin/p12475.C: Use LONG_MAX to find
        the constant to test.  Don't XFAIL 64-bit targets.
        * g++.old-deja/g++.jason/thunk3.C: Don't XFAIL Alpha.
        * g++.old-deja/g++.law/profile1.C: Likewise.
        * g++.old-deja/g++.other/delete4.C: Define size_t; use it in all
        operator new instances.
        * g++.old-deja/g++.other/delete5.C: Likewise.

From-SVN: r26840