mach_exception_data_type_t is more generic and is used for any element
of a codes[] array. For individual elements, the typedefs
mach_exception_code_t and mach_exception_subcode_t are available. Using
mach_exception_code_t when possible gives slightly more descriptive
code.
No functional change.
TEST=util_test ExcServerVariants.*
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/585473003
catch_exception_tool catches Mach exceptions. Currenlty, it simply
prints a message with some information about each exception it handles.
In the future, it will be tied to the minidump generator as well.
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/579443005
