llvm-project

fbb22ce1 - [clang] NFC: new tests and some cleanups on existing ones (#142293)

[clang] NFC: new tests and some cleanups on existing ones (#142293) This offloads some test changes from another PR in order to facilitate review. - Adds some new tests. - Cleans stray spaces and newlines on existing tests. - Regenerates some AST json dumps, as the generator now includes offsets.