RFR: 7903285: jextract should skip static symbols [v2]

[Athijegannathan Sundararajan]

> Cursor linkage kind CXLinkage_Internal is used for static variables and static functions. Filtering the cursors with that linkage kind. Most of the changes are due to regenerated clang bindings to include clang_getCursorLinkage and CXLinkageKind enum constants.

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

  by miakste, used llvm 10 to regenerate bindings. Using llvm 13.0.0 now.

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

Changes:
  - all: https://git.openjdk.org/jextract/pull/70/files
  - new: https://git.openjdk.org/jextract/pull/70/files/d3e7b21e..df32c567

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jextract&pr=70&range=01
 - incr: https://webrevs.openjdk.org/?repo=jextract&pr=70&range=00-01

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jextract/pull/70.diff
  Fetch: git fetch https://git.openjdk.org/jextract pull/70/head:pull/70

PR: https://git.openjdk.org/jextract/pull/70