RFR: 6534: String deduplication rule assumes only G1 has feature

[Jie Kang]

Translations were provided by speakers of the language. They seem to make sense on linguistic verification from myself.

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Commits:
 - 3740cd3f: 6534: String deduplication rule assumes only G1 has feature

Changes: https://git.openjdk.java.net/jmc/pull/54/files
 Webrev: https://webrevs.openjdk.java.net/jmc/54/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JMC-6534
  Stats: 21 lines in 7 files changed: 3 ins; 7 del; 11 mod
  Patch: https://git.openjdk.java.net/jmc/pull/54.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/54/head:pull/54

PR: https://git.openjdk.java.net/jmc/pull/54