THRIFT-5417: Fix Lua compiler omitting default values in Lua service functions

[elludraon]

Add missing default argument values for service client functions in generated Lua code.

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[Jens-G]

That's the case for a lot of them, not just Lua. Thanks!

[huzhao37]

When I use Compact protocol to codec complex structures, I call initialize, assign a value to one of the simple string types, then encode, get buffer, and then decode, I find that the value of the field of string type is missing, if I initialize other complex fields in the complex structure, I won't have this problem, how to solve this?

[Jens-G]

... how to solve this?

We have a mailing list. Actually we have two mailing lists. I'd recommend to ask there, it seems too offtopic.