Add `@implements` to SPL iterator stubs · phpstan/phpstan-src@93455b3

Process completed with exit code 1.

Unary operation "+" on non-empty-string results in an error.

Ignored error pattern #^Unary operation "\+" on string results in an error\.$# (unaryOp.invalid) in path /home/runner/work/phpstan-src/phpstan-src/e2e/integration/repo/lib/PhpParser/ParserAbstract.php was not matched in reported errors.