Assignment operator parse errors for object properties

[TwitchBronBron]

Assignment operators do not work when used against an object property. Here is a test file that compiles and runs on Roku, but produces parse errors in brs.

Source

function Main()
   m.age = 1

   m.age += 1
   m.age -= 1
   m.age *= 1
   m.age /= 1
   m.age \= 1
   m.age <<= 1
   m.age >>= 1

   m["age"] += 1
   m["age"] -= 1
   m["age"] *= 1
   m["age"] /= 1
   m["age"] \= 1
   m["age"] <<= 1
   m["age"] >>= 1

   print m.age
end function

[TwitchBronBron]

This appears to be working great except for the bitshift assignment operators, which still cause parse errors. I'm sure that's related to this issue.