RFR: 8270282: Semantically rename reference processing subphases [v2]

[Albert Mingkun Yang]

> Simple rename of phase{2,3,4} to something with semantic meaning.

Albert Mingkun Yang has updated the pull request incrementally with one additional commit since the last revision:

  rename method name

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/4752/files
  - new: https://git.openjdk.java.net/jdk/pull/4752/files/49a4e277..42f38910

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=4752&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=4752&range=00-01

  Stats: 7 lines in 3 files changed: 0 ins; 0 del; 7 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4752.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4752/head:pull/4752

PR: https://git.openjdk.java.net/jdk/pull/4752