[code-reflection] Integrated: jextract 25 import fix

[Gary Frost]

jextract seems to now make symbols from `foo_h_1` private.  Probably to force import through `foo_h` 

This was breaking opengl extract.

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Commit messages:
 - jextract 25 import fix

Changes: https://git.openjdk.org/babylon/pull/695/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=695&range=00
  Stats: 10 lines in 2 files changed: 0 ins; 0 del; 10 mod
  Patch: https://git.openjdk.org/babylon/pull/695.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/695/head:pull/695

PR: https://git.openjdk.org/babylon/pull/695