Ruby

merge revision(s) 5bc8fceca8d47ed1ef9c603c6531a408de36b60c: [Backport #19835]

 Fix memory leak in parser for incomplete tokens [Bug #19835] The parser does not free the `tbl` of the `struct vtable` when there are leftover `lvtbl` in the parser. This causes a memory leak. The following script reproduces this issue: ``` 10.times do 100_000.times do Ripper.parse("class Foo") end puts `ps -o rss= -p #{$$}` end ``` --- parse.y | 42 ++++++++++++++++++++++++++++-------------- test/ripper/test_ripper.rb | 7 +++++++ 2 files changed, 35 insertions(+), 14 deletions(-)