[foreign-jextract] RFR: 8267305: regenerate clang jextract binding

[Athijegannathan Sundararajan]

clang.symbols file to list the symbols used.

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Commit messages:
 - 8267305: regenerate clang jextract binding

Changes: https://git.openjdk.java.net/panama-foreign/pull/538/files
 Webrev: https://webrevs.openjdk.java.net/?repo=panama-foreign&pr=538&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8267305
  Stats: 14511 lines in 34 files changed: 3136 ins; 10850 del; 525 mod
  Patch: https://git.openjdk.java.net/panama-foreign/pull/538.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-foreign pull/538/head:pull/538

PR: https://git.openjdk.java.net/panama-foreign/pull/538