Add ZWNJ_ZWJ_KEY for keyboard layout test

This CL also refactors Symbols and SymbolsShifted class a bit.

Bug: 13017434
Change-Id: I42bfe96553ea8447fc834d29c09ce1ce7794650d
6 files changed
tree: 301ad2b97e92c838721f0afd8bfae5c245634c5d
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk