Version: HEAD (local build in clean client)
OS: Linux

What steps will reproduce the problem?
(1) Build a chrome debug build, run it
(2) Open the attached html file

What is the expected output?
No DCHECK failure

What do you see instead?
DCHECK failure at https://code.google.com/p/chromium/codesearch#chromium/src/v8/src/parsing/parser.cc&l=851

#
# Fatal error in ../../v8/src/parsing/parser.cc, line 851
# Check failed: scanner_.peek_location().beg_pos == source->length() (29 vs. 28).
#


- If there is a utf-16 character present in the file, and there is no newline at the end of the file, this DCHECK fails

- If the utf-16 character is present, and there is a newline at the end of the file, the DCHECK does not fail
- If there is no utf-16 character present, and there is no newline at the end of the file, the DCHECK does not fail

I've attached html and js files demonstrating these three case.
 

Deleted: test-eng.html 61 bytes

test-eng.html 61 bytes View Download

Deleted: script-eng.js 27 bytes

script-eng.js 27 bytes View Download

Deleted: test-kata.html 62 bytes

test-kata.html 62 bytes View Download

Deleted: script-kata.js 28 bytes

script-kata.js 28 bytes View Download

Deleted: test-kata-newline.html 70 bytes

test-kata-newline.html 70 bytes View Download

Deleted: script-kata-newline.js 29 bytes

script-kata-newline.js 29 bytes View Download