am fd5b1bb8: Add stdlib functions mbstowcs() and wcstombs(). DO NOT MERGE.

Merge commit 'fd5b1bb85d0a971fd8469112a157380c4d3a146f' into eclair-mr2-plus-aosp

* commit 'fd5b1bb85d0a971fd8469112a157380c4d3a146f':
  Add stdlib functions mbstowcs() and wcstombs(). DO NOT MERGE.