tools/make_java_csharp_arena_base:
tools/make_java_csharp_arena_diff:
Add these scripts, which can be used to check whether the output
of a new compiler in Java and C# grades is bit-identical to the output
of a known-good old compiler. This is particularly useful on machines
that can't check the correctness of the output in these grades
because they don't have Java or C# compilers installed.
