RFR: CODETOOLS-7903569: JOL: Use human-readable class names consistently [v3]

[Aleksey Shipilev]

> There are a couple of places, where we print out JVM names for classes. Notably, it happens during "footprint". We need to consistently use the human-readable class names everywhere.

Aleksey Shipilev has updated the pull request incrementally with one additional commit since the last revision:

  Add tests

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Changes:
  - all: https://git.openjdk.org/jol/pull/51/files
  - new: https://git.openjdk.org/jol/pull/51/files/51679dda..008c74fc

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jol&pr=51&range=02
 - incr: https://webrevs.openjdk.org/?repo=jol&pr=51&range=01-02

  Stats: 112 lines in 2 files changed: 112 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jol/pull/51.diff
  Fetch: git fetch https://git.openjdk.org/jol.git pull/51/head:pull/51

PR: https://git.openjdk.org/jol/pull/51