
Turning on a few more intel warning repressions for
the generated code to turn off things that we might
ultimately want to clean up, but which aren't high
priority right now:

  - warnings about unreachable statements
  - warnings about expressions with no effect

Also added a warning about unused variable declarations
which is the equivalent of the -Wno-unused that we apply
to the generated code for gcc.


git-svn-id: 88467cb1fb04b8a755be7e1ee1026be4190196ef@13213 3a8e244f-b0f2-452b-bcba-4c88e055c3ca

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