treatment of inline functions

[Frank Ch. Eigler]

I wrote:

> I'm working on bug #1570 - the one associated with our handling
> of .function("...") vs .inline("...").  [...]

This is now done.  One of the main effects is that .function("*") now
matches far more functions than it used to: each individual inlined
instance of functions.  Because of this, entry/exit type tracing now
needs to use the new qualifier ".call" to pair with ".return".

  probe kernel.function("*foo*").call { log (probefunc() . " entry") }
  probe kernel.function("*foo*").return { log (probefunc() . " exit") }

Sample scripts related to this will need to be updated.

- FChE