Prepare to load dictionary data set from an external file

This CL is a groundwork to enable mozc server to load dictionary data set from an external file at runtime.  No actual behavior change is intended right now though.

Major changes are:
- Add sentinel elements to arrays of POSMatcher to determine array size.
- Remove const qualifier from POSMatcher::Range so that it can be constructed by vector::push_back.

BUG=none
TEST=unittest

git-svn-id: https://mozc.googlecode.com/svn/trunk@450 a6090854-d499-a067-5803-1114d4e51264
4 files changed
tree: 0fa1e3f12379238f9516fa292c1c116d90786e4c
  1. src/