debug variables in the debug view can have mixed names for integers or
strings then an error will occur:

An internal error occurred during: "compute variable details".
Comparison method violates its general contract!
java.lang.IllegalArgumentException: Comparison method violates its
general contract!


Comparator was not consistent comparing number1 < string < number2.
It could say something like:
 "2a" < "5" < "116" < "2a"
 
Change-Id: I3bc560531dbc5a6c7a8c6e22dd7129f2541eb5e1