RFR: JDK-8192963/JDK-8206986 JEP 325: Switch Expressions (Preview)

[Jan Lahoda]

Hi,

As JEP 325 is in the proposed to target state, I thought it might be a 
good idea to start a review process for the code.

The code here strives to implement the current specification for the 
Switch Expressions:
http://cr.openjdk.java.net/~gbierman/switch-expressions.html

The current webrev is here:
http://cr.openjdk.java.net/~jlahoda/8192963/webrev.00/

(includes a list of new errors.)

JBS:
https://bugs.openjdk.java.net/browse/JDK-8192963
https://bugs.openjdk.java.net/browse/JDK-8206986

CSRs:
https://bugs.openjdk.java.net/browse/JDK-8207241
https://bugs.openjdk.java.net/browse/JDK-8207406

Any feedback is welcome!

Thanks,
     Jan