YJIT: Fallback Integer#<< if a shift amount varies (#9426)
YJIT: Fallback Integer#<< if a shift amount varies
YJIT: Do not fallback lshift in the first chain
YJIT: Fallback Integer#<< if a shift amount varies (#9426)
YJIT: Fallback Integer#<< if a shift amount varies
YJIT: Do not fallback lshift in the first chain