fix(parsing): recover export-macro-hidden type definitions (#1989)

Collect a bounded set of conventional export macro candidates and inject empty definitions into the existing C/C++ preprocessing second pass without overriding explicit caller definitions.

Conservatively reconcile remapped definitions to recover hidden classes, structs, enums, free functions, and inline methods while suppressing matching base-class phantom callables.

Add focused regression coverage for supported suffixes, ordinary all-caps negative controls, candidate limits, comments, strings, raw strings, overlong names, explicit define priority, and C/C++ extraction.

Rebase onto main 92abefa3 and route the temporary superseded-definition bitmap through the extraction memory class to comply with the current allocation contract. Preserve the error-region dropped counter initialization.

Signed-off-by: XIYBHK <xiybhk@163.com>