[foreign-jextract] RFR: 8251893: jextract does not generate source for ConstantHelper even when --source is used [v2]

[Athijegannathan Sundararajan]

> ConstantHelper.java is generated when --source is used

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

  Fixed constant address (string, NULL) cases. fixed Infinity, NaN floats.

-------------

Changes:
  - all: https://git.openjdk.java.net/panama-foreign/pull/283/files
  - new: https://git.openjdk.java.net/panama-foreign/pull/283/files/c50352a8..cca7ef8d

Webrevs:
 - full: https://webrevs.openjdk.java.net/panama-foreign/283/webrev.01
 - incr: https://webrevs.openjdk.java.net/panama-foreign/283/webrev.00-01

  Stats: 37 lines in 1 file changed: 23 ins; 0 del; 14 mod
  Patch: https://git.openjdk.java.net/panama-foreign/pull/283.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-foreign pull/283/head:pull/283

PR: https://git.openjdk.java.net/panama-foreign/pull/283