JNI: fz_var()/return to make behavior correct upon fz_throw().

Previously in many instances the code was allowed to continue
after running jni_rethrow() or jni_throw(). When doing so it
used variables whose values may have changed inside fz_try().
Those variables must in that case be declared using fz_var().

Another way of avoiding this from happening (and thus having
to use fz_var()) is to return from the function immediately
after jni_rethrow()/jni_throw(). All remaining occurrances
where this is not possible still needs fz_var().

The code is now changed so that it either uses fz_var() or
returns early to avoid using variables that have not been
declared using fz_var().

0 files changed, 0 insertions, 0 deletions