RFR: [corba] 4504275, 8011986 - two issues with generated code

[Dmeetry Degrave]

Hi all,

I'm looking for a review for two ancient issues in idlj.

First is an issue with uncompilable java code generated for unions with 
boolean discriminator.

4504275: CORBA boolean type unions do not generate compilable code from idlj
bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4504275
fix: http://cr.openjdk.java.net/~dmeetry/4504275/webrev.0/

Second (is not available on bugs.sun.com atm) is an issue with generated 
read/write union helper methods that throw org.omg.CORBA.BAD_OPERATION 
in cases when boolean discriminator's value isn't matched, which is wrong.

8011986: [corba] idlj generates read/write union helper methods that 
throw wrong exception in some cases
bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=8011986
fix: http://cr.openjdk.java.net/~dmeetry/8011986/webrev.0/

Both fixes are intended for jdk7 and 8.

thanks,
dmeetry