RFR: 8273218: G1: Rename g1EvacuationInfo to g1EvacInfo [v4]

[Hamlin Li]

> This is a minor cleanup to rename g1EvacuationInfo to g1EvacInfo, as other similar files are named as EvacXxx.

Hamlin Li has updated the pull request incrementally with one additional commit since the last revision:

  Fix merge issue

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/5325/files
  - new: https://git.openjdk.java.net/jdk/pull/5325/files/ea3636be..8234dcd5

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=5325&range=03
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=5325&range=02-03

  Stats: 107 lines in 2 files changed: 106 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5325.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5325/head:pull/5325

PR: https://git.openjdk.java.net/jdk/pull/5325