Version 3.19.18

Fixed read-only attribute of Function.length in strict mode.  (issue 2705)

Fixed Runtime_SetProperty to properly handle OOM failures (Chromium issue 249873)

Emit deprecated check for constant function transitions.  (Chromium issue 250609)

Made MathFloorOfDiv optimization trigger more often (Issue 2205)

Make more GCs in idle notification handler.  (Chromium issue 241815)

Increased default type info threshold.  (Issue 2730)

git-svn-id: https://v8.googlecode.com/svn/trunk@15191 ce2b1a6d-e550-0410-aec6-3dcde31c8c00