Use getAllSymbols instead of getAllSymbolsSorted.
Use getAllSymbols instead of getAllSymbolsSorted.

The sorting does not matter in this case, although the fact that we get a *copy* of the list of symbols does (otherwise we get a ConcurrentModificationException) which is why this also changes getAllSymbols to return an immutable *copy* instead of an unmodifiable *view*.

It looks like about 1% of analysis time is spent just on sorting the symbols, so this should speed things up slightly.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=179461881

mprobst/closure-compiler,tiobe/closure-compiler,mprobst/closure-compiler,ChadKillingsworth/closure-compiler,ChadKillingsworth/closure-compiler,Yannic/closure-compiler,tdelmas/closure-compiler,monetate/closure-compiler,tdelmas/closure-compiler,google/closure-compiler,Yannic/closure-compiler,ChadKillingsworth/closure-compiler,shantanusharma/closure-compiler,nawawi/closure-compiler,monetate/closure-compiler,tdelmas/closure-compiler,Yannic/closure-compiler,vobruba-martin/closure-compiler,nawawi/closure-compiler,google/closure-compiler,mprobst/closure-compiler,vobruba-martin/closure-compiler,ChadKillingsworth/closure-compiler,monetate/closure-compiler,shantanusharma/closure-compiler,vobruba-martin/closure-compiler,tdelmas/closure-compiler,google/closure-compiler,shantanusharma/closure-compiler,mprobst/closure-compiler,Yannic/closure-compiler,tiobe/closure-compiler,vobruba-martin/closure-compiler,monetate/closure-compiler,nawawi/closure-compiler,shantanusharma/closure-compiler,tiobe/closure-compiler,google/closure-compiler,nawawi/closure-compiler,tiobe/closure-compiler