Ruby: rename max_recursion_depth to recursion_limit

[acozzette]

This will help keep the terminology consistent with the other language
implementations.

[haberman]

Thanks Adam!

One related thing that would be helpful, if you have the time, is to verify that the recursion limit here has the same semantics as in C++. In other words, it would be nice if there weren't off-by-one errors, where using the same recursion limit in two languages yielded slightly different results.

[acozzette]

Let me see about adding a conformance test, since that seems like it would be the most reliable way to make sure languages are enforcing the same recursion limit.

[aleksandarabas]

NO NO NO, some people will mistake it as a rushed abbreviation for recursion limit case.
But the stack depth limit which is imposed on the recursion process must be clearly distinguished from whatever custom property that doesn't require privilege escalation. This will help avoid ww3. thank you

[aleksandarabas]

Let me see about adding a conformance test, since that seems like it would be the most reliable way to make sure languages are enforcing the same recursion limit.

This is very plainly why you struggle with the phenomena of small government republicans. :D