Minor cleanup based on profiler output of CompileParseFunction.

Minor cleanup based on profiler output of CompileParseFunction.

- Add a zone parameter to TokenStream::Iterator
- Add IsXXXX() functions in raw_object.h using GetClassId()
- Modify
    - Function::owner
    - Function::origin
    - Type::IsMalformed
    - Type::IsMalbounded
    - Type::error
  to not create a Handle in the common path

R=regis@google.com

Committed: https://github.com/dart-lang/sdk/commit/95904322e79031df765570c88a52e10165c9b384

[siva, 2016-05-04 20:48:38]

Description was changed from

==========
Minor cleanup based on profiler output of CompileParseFunction.
==========

to

==========
Minor cleanup based on profiler output of CompileParseFunction.

- Add a zone parameter to TokenStream::Iterator
- Add IsXXXX() functions in raw_object.h using GetClassId()
- Modify
    - Function::owner
    - Function::origin
    - Type::IsMalformed
    - Type::IsMalbounded
    - Type::error
  to not create a Handle in the common path
==========

[siva, 2016-05-04 20:48:38]

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

[regis, 2016-05-04 21:44:14]

LGTM

[siva, 2016-05-04 22:30:59]

Description was changed from

==========
Minor cleanup based on profiler output of CompileParseFunction.

- Add a zone parameter to TokenStream::Iterator
- Add IsXXXX() functions in raw_object.h using GetClassId()
- Modify
    - Function::owner
    - Function::origin
    - Type::IsMalformed
    - Type::IsMalbounded
    - Type::error
  to not create a Handle in the common path
==========

to

==========
Minor cleanup based on profiler output of CompileParseFunction.

- Add a zone parameter to TokenStream::Iterator
- Add IsXXXX() functions in raw_object.h using GetClassId()
- Modify
    - Function::owner
    - Function::origin
    - Type::IsMalformed
    - Type::IsMalbounded
    - Type::error
  to not create a Handle in the common path

R=regis@google.com

Committed:
https://github.com/dart-lang/sdk/commit/95904322e79031df765570c88a52e10165c9b384
==========

[siva, 2016-05-04 22:31:00]

Committed patchset #1 (id:1) manually as
95904322e79031df765570c88a52e10165c9b384 (presubmit successful).

[rmacnak, 2016-05-05 03:58:28]

rmacnak@google.com changed reviewers:
+ rmacnak@google.com

[rmacnak, 2016-05-05 03:58:29]

https://codereview.chromium.org/1952023002/diff/1/runtime/vm/raw_object.h
File runtime/vm/raw_object.h (left):

https://codereview.chromium.org/1952023002/diff/1/runtime/vm/raw_object.h#old...
runtime/vm/raw_object.h:457: return IsStringClassId(GetClassId());
This isn't the same as GetClassId() == kStringCid.  Breaks symbol table
compaction, suppressed in 257b3a82b8d3d1cee57956deb214e6ef1aba3ac1.