Deobfuscated exception messages should be obfuscated in the 'Unsymbolicated' view

[PhilGlass]

Description

The fix for #942 is great - now our exception messages that contain class names are much easier to understand.

But I was recently debugging an issue related to obfuscation, I wanted the obfuscated version of the stack trace, and I noticed that the exception message was still deobfuscated in the 'Unsymbolicated' view (the stack trace was WAI). Ideally it wouldn't be.

[linear]

JAVA-255

[romtsn]

hey @PhilGlass thanks for the issue - I think this should be easy enough for us to do given that we store the raw_exception value (you can find in the event json), so we just need to tie it with the Unsymbolicated view.