New gcj option --no-store-check

[Bryce McKinlay]

Just an FYI:

I've committed a patch which implements some optimizations for array 
accesses as well as a new flag, --no-store-check, which disables 
assignability checks for stores into object arrays. It works much like 
--no-bounds-check: for code that you are sure will never throw an 
ArrayStoreException, this flag can be used to disable the checks which 
can provide a reasonable performance boost and reduce code size slightly.

regards

Bryce.