Commit 5d75648b56 "qapi: Generate QAPIEvent stuff into separate files"
added tests/test-qapi-emit-events.[ch] to the set of generated files,
but neglected to update tests/.gitignore and tests/Makefile.include.
Commit a0af8cee3c "tests/.gitignore: ignore test-qapi-emit-events.[ch]
for in-tree builds
Commit 5d75648b56 "qapi: Generate QAPIEvent stuff into separate files"
added tests/test-qapi-emit-events.[ch] to the set of generated files,
but neglected to update tests/.gitignore and tests/Makefile.include.
Commit a0af8cee3c "tests/.gitignore: ignore test-qapi-emit-events.[ch]
for in-tree builds