[SPARK-11832] [Core] Process arguments in spark-shell for Scala 2.11

[jodersky]

Process arguments passed to the spark-shell. Fixes running the spark-shell from within a build environment.

[ScrapCodes]

Why "-usejavacp" is not added here ?

[jodersky]

"-usejavacp" is actually passed from the build sparkShell task. I didn't want to change the conditions under which it is called (i.e. it may not be needed if other arguments are supplied)

[vanzin]

ok to test

[SparkQA]

Test build #47168 has finished for PR 9824 at commit 3ebcf91.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[jodersky]

This PR is pretty low priority but still a neat thing to have when developing.
@vanzin, is this PR acceptable?

[vanzin]

Code looks ok to me, but this is not an area where I have much familiarity (e.g. I'm not familiar with how the underlying repl works in detail). Perhaps others know? @JoshRosen @andrewor14

[dragos]

@jodersky, I didn't see you PR and opened #10199. I think it makes sense to push yours and close mine, but it would be good to treat errors and stop execution in that case (same way the REPL for 2.10 does). It's only a few lines of code more, as in my PR.

[jodersky]

+1 for treating the errors. How do you usually deal with overlapping pull requests? Should I just copy your error-handling code manually and mention it?

[dragos]

Copying is fine by me, it's a really small piece of code. I already closed my PR.

[jodersky]

@dragos, should be good now

[SparkQA]

Test build #47436 has started for PR 9824 at commit 72adf1e.

[dragos]

LGTM. Let's get this in, two PRs in 2 weeks is a good sign this is very useful ;-)

[vanzin]

Ok, I'm merging this to master.