[dmd-internals] [D-Programming-Language/dmd] fc30df: Merge pull request #4708 from WalterBright/dtsize

[GitHub via dmd-internals]

  Branch: refs/heads/dmd-1.x
  Home:   https://github.com/D-Programming-Language/dmd
  Commit: fc30df5f29d313e05b393a899eeff1ec007a1e69
      https://github.com/D-Programming-Language/dmd/commit/fc30df5f29d313e05b393a899eeff1ec007a1e69
  Author: Daniel Murphy <yebblies at gmail.com>
  Date:   2015-06-02 (Tue, 02 Jun 2015)

  Changed paths:
    M src/backend/cc.h
    M src/backend/dt.c

  Log Message:
  -----------
  Merge pull request #4708 from WalterBright/dtsize

Improve small string optimization for dt_t