Another clarifying rename and a bit more automation.

kNumDalvikInstructions is now kNumPackedOpcodes, there is a new
kMaxOpcodeValue, and both are generated by opcode-gen.

Change-Id: Ic46f1f52d2d21382452c8e777024f4a985ad31d3
Bonus: Reworded the switch and array data comment for clarity.
18 files changed