January 18, 2013
  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/dmd
  Commit: f7ed6351635a05c6999b888e5fbc1342f3aa5896
      https://github.com/D-Programming-Language/dmd/commit/f7ed6351635a05c6999b888e5fbc1342f3aa5896
  Author: Walter Bright <walter@walterbright.com>
  Date:   2013-01-18 (Fri, 18 Jan 2013)

  Changed paths:
    M src/toir.c

  Log Message:
  -----------
  remove bt() builtin


  Commit: 4305a76ca5a6a229bf8420320d51fced63cc96ed
      https://github.com/D-Programming-Language/dmd/commit/4305a76ca5a6a229bf8420320d51fced63cc96ed
  Author: Walter Bright <walter@walterbright.com>
  Date:   2013-01-18 (Fri, 18 Jan 2013)

  Changed paths:
    M src/toir.c

  Log Message:
  -----------
  Merge pull request #1510 from WalterBright/b14

remove bt() builtin


Compare: https://github.com/D-Programming-Language/dmd/compare/be75b4499819...4305a76ca5a6