[foreign-jextract] RFR: 8252047: jextract generates uncompilable code with --source option [v2]

[Athijegannathan Sundararajan]

> Splitting constant helper class into multiple classes.
> Piggybacking to avoid generating "long double" fields, variables, arguments.

Athijegannathan Sundararajan has updated the pull request incrementally with one additional commit since the last
revision:

  Access LIBRARIES field without fully qualified name.

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Changes:
  - all: https://git.openjdk.java.net/panama-foreign/pull/286/files
  - new: https://git.openjdk.java.net/panama-foreign/pull/286/files/a058bfbf..157b1eeb

Webrevs:
 - full: https://webrevs.openjdk.java.net/panama-foreign/286/webrev.01
 - incr: https://webrevs.openjdk.java.net/panama-foreign/286/webrev.00-01

  Stats: 4 lines in 1 file changed: 0 ins; 2 del; 2 mod
  Patch: https://git.openjdk.java.net/panama-foreign/pull/286.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-foreign pull/286/head:pull/286

PR: https://git.openjdk.java.net/panama-foreign/pull/286