Simplification in resolving classes

Simplification in resolving classes

The helper functions in Parser to resolve classes in the library
and prefix scope created an unnecessary handlescope. With libraries
caching previous lookups, and with namespaces now using dictionaries,
there are just a handful (so to speak) of handles allocated for the
lookup. That does not warrant a handlescope. Removed the helper
functions.

R=asiva@google.com

Committed: https://code.google.com/p/dart/source/detail?r=45399

[hausner, 2015-04-23 18:32:23]

hausner@google.com changed reviewers:
+ asiva@google.com

[siva, 2015-04-23 23:48:25]

lgtm

[hausner, 2015-04-24 15:46:02]

Committed patchset #1 (id:1) manually as r45399 (presubmit successful).