I moved the code which turned out to be handy in fixing the callable issue
as
well:
in VisitCall, shortly after PushLoad is called it is checked if the
function is
a HConstant, and if it is, types->first() is called without checking the
length
of the types (assumption is that there is at least 1 type).
However when using for example --always-opt this optimization used to
return a
constant function when types->length is 0 and this causes a crash when
types->first() is called.
This is fixed by moving the optimization after the check has been done that
types->length() > 0.
https://codereview.chromium.org/220163012/
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