RFR(M) : 8177507 : line number sensitive tests for jdi should be unified

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev/8177507/webrev.00
> 295 lines changed: 176 ins; 15 del; 104 mod;

Hi all,

could you please review this fix for 8177507?

due to their nature, some of jdi tests are line number sensitive. unfortunately different tests indicate that differently, so it's quite easy to overlook that and incidentally break tests, for example by changing module dependency declaration or license modification. this fix unifies the way line number sensitivity is indicated and also improves readability/maintainability of some tests by using constant fields instead of magic numbers.

some of line number sensitive tests have been unexpectedly removed from execution because they had @test/nodynamiccopyright/ instead of @test tag. this changeset fixes and returns them to regular execution.  

webrev: http://cr.openjdk.java.net/~iignatyev/8177507/webrev.00
JBS: https://bugs.openjdk.java.net/browse/JDK-8177507
testing: test/com/sun/jdi

Thanks,
-- Igor