RFR: 8244146: javac changes for JEP 306 [v8]

[Joe Darcy]

> 8244146: javac changes for JEP 306

Joe Darcy has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 20 commits:

 - Merge branch 'master' into 8244146
 - Merge branch 'master' into 8244146
 - Update GenericStringTest
 - Merge branch 'master' into 8244146
 - Merge branch 'master' into 8244146
 - Merge branch 'master' into 8244146
 - Respond to review feedback.
 - Respond to review feedback.
 - Respond to review feedback.
 - Add explicit test for warning strictfp suppression.
 - ... and 10 more: https://git.openjdk.java.net/jdk/compare/c2c0208d...3f1aeecc

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Changes: https://git.openjdk.java.net/jdk/pull/3831/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3831&range=07
  Stats: 571 lines in 28 files changed: 529 ins; 7 del; 35 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3831.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3831/head:pull/3831

PR: https://git.openjdk.java.net/jdk/pull/3831