RFR: 8005885: enhance PrintCodeCache to print more data [v4]

[Yi-Fan Tsai]

> 8005885: enhance PrintCodeCache to print more data

Yi-Fan Tsai has updated the pull request incrementally with one additional commit since the last revision:

  Improve formatting

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7389/files
  - new: https://git.openjdk.java.net/jdk/pull/7389/files/09583321..97b579bc

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7389&range=03
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7389&range=02-03

  Stats: 8 lines in 1 file changed: 2 ins; 0 del; 6 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7389.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7389/head:pull/7389

PR: https://git.openjdk.java.net/jdk/pull/7389