Follow on work from WT-4919, we should use the new debug mode in asan with test/format to try and detect any potential memory leaks / issues that we would've missed using the original __wt_realloc_def.
Follow on work from WT-4919, we should use the new debug mode in asan with test/format to try and detect any potential memory leaks / issues that we would've missed using the original __wt_realloc_def.