RFR: 8272473: Parsing epoch seconds at a DST transition with a non-UTC parser is wrong

[Naoto Sato]

Please review the fix to the subject issue. When instant seconds and zone co-exist in parsed data, instant seconds was not resolved correctly from them.

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Commit messages:
 - 8272473: Parsing epoch seconds at a DST transition with a non-UTC parser is wrong

Changes: https://git.openjdk.java.net/jdk/pull/5225/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5225&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8272473
  Stats: 14 lines in 2 files changed: 8 ins; 0 del; 6 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5225.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5225/head:pull/5225

PR: https://git.openjdk.java.net/jdk/pull/5225