Pascal case for Enums, calculator program + Modified Hello program

[lostintime101]

Calculator example program Enums changed to Pascal case due to an issue on Playgrounds.
See: solana-playground/solana-playground#191

[lostintime101]

Have modified the "Hello" program, adding a missing instruction to create the user token account

[mcintyre94]

Looks good! Would you mind updating the generated examples too? If you have the repo running locally you should be able to just run ./tests/compile-tests.sh. Then check in the updated files.

[lostintime101]

running ./tests/compile-tests.sh isn't doing much. The script seems to be looking for an executable 'seahorse' that isn't there

[mcintyre94]

Ah sorry, if you run cargo build first that'll compile it locally.

The idea of that script is that if we change the compiler code, we can re-compile a bunch of code and verify that the output either isn't changed, or is changed in the expected way. So it runs against the locally compiled version of seahorse, with whatever local changes you've made.