Crystal compiler bug (UInt128 as Hex)

[delef]

0xadc0db298a7401251f4fa96ba429cb24
https://carc.in/#/r/6a3j

Overflow (OverflowError)
  from ???
  from ???
  from ???
  from ???
  from ???
  from ???
  from ???
  from ???
  from __crystal_main
  from main
  from __libc_start_main
  from _start
  from ???
Error: you've found a bug in the Crystal compiler. Please open an issue, including source code that will allow us to reproduce the bug: https://github.com/crystal-lang/crystal/issues

in addition to: #7448

I create this issue, because another exception is raised.

[jhass]

With stacktrace:

0xadc0db298a7401251f4fa96ba429cb24

Arithmetic overflow (OverflowError)
  from projects/crystal/src/compiler/crystal/syntax/lexer.cr:1728:23 in 'scan_hex_number'
  from projects/crystal/src/compiler/crystal/syntax/lexer.cr:1625:9 in 'scan_zero_number'
  from projects/crystal/src/compiler/crystal/syntax/lexer.cr:1622:5 in 'scan_zero_number'
  from projects/crystal/src/compiler/crystal/syntax/lexer.cr:756:9 in 'next_token'
  from projects/crystal/src/compiler/crystal/syntax/parser.cr:5830:7 in 'next_token'
  from projects/crystal/src/compiler/crystal/syntax/lexer.cr:2881:7 in 'next_token_skip_statement_end'
  from projects/crystal/src/compiler/crystal/syntax/parser.cr:75:21 in 'parse'
  from projects/crystal/src/compiler/crystal/compiler.cr:242:7 in 'parse'
  from projects/crystal/src/compiler/crystal/compiler.cr:130:9 in 'parse'
  from projects/crystal/src/compiler/crystal/compiler.cr:165:7 in 'compile'
  from projects/crystal/src/compiler/crystal/command.cr:266:7 in 'compile'
  from projects/crystal/src/compiler/crystal/command.cr:264:5 in 'compile'
  from projects/crystal/src/compiler/crystal/command.cr:161:5 in 'build'
  from projects/crystal/src/compiler/crystal/command.cr:67:16 in 'run'
  from projects/crystal/src/compiler/crystal/command.cr:46:5 in 'run'
  from projects/crystal/src/compiler/crystal/command.cr:45:3 in 'run'
  from projects/crystal/src/compiler/crystal.cr:8:1 in '__crystal_main'
  from projects/crystal/src/crystal/main.cr:97:5 in 'main_user_code'
  from projects/crystal/src/crystal/main.cr:86:7 in 'main'
  from projects/crystal/src/crystal/main.cr:106:3 in 'main'
  from __libc_start_main
  from _start
  from ???

[straight-shoota]

This has been resolved by #11571