RFR: 8281379: Assign package declarations to all jtreg test cases under gc [v2]

[Leo Korinth]

> Assign package declarations to all jtreg test cases under directory "gc". At the moment a few test cases are using no explicit package which makes it hard editing the testcase in an IDE. 
> 
> hotspot_gc passed.

Leo Korinth has updated the pull request incrementally with one additional commit since the last revision:

  breaking long @run line

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7370/files
  - new: https://git.openjdk.java.net/jdk/pull/7370/files/63d5bbb7..36e552ff

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7370&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7370&range=00-01

  Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7370.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7370/head:pull/7370

PR: https://git.openjdk.java.net/jdk/pull/7370