fix IllegalOutOfBoundsException

StringUtils.toCodePointArray() had thrown IllegalOutOfBoundsException if
passed an empty string.  change to just return an empty int[].

Bug: 6188932
Change-Id: Ic41c628c0d407f49fc98cd48cb7ea13d8d5bdd77
1 file changed
tree: 68aa65581b0e1d12655d104f397e69a28118adb7
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk