Do not explicitly record undetectable objects in the ToBoolean stub.
Loading the map within the stub already implies a check for an undetectable
object, so there is no need to record this separately. Furthermore, this brings
the size of the type info to record down to 8 bits, removing the need to find a
place for the ninth bit in the Code object. ;-)
Review URL: http://codereview.chromium.org/7484022
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8722
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