New Defects reported by Coverity Scan for LibreOffice

[Caolán McNamara]

On Tue, 2018-10-16 at 12:33 +0000, scan-admin at coverity.com wrote:
> 
> ** CID 1440303:  Error handling issues  (UNCAUGHT_EXCEPT)
> /sc/source/core/data/column3.cxx: 2394 in
> <unnamed>::FormulaToValueHandler::Entry::Entry(<unnamed>::FormulaToVa
> lueHandler::Entry&&)()

FWIW I think the const-ing up of loplugin:constfields effectively
disables move constructors


https://www.chromium.org/rvalue-references?tmpl=%2Fsystem%2Fapp%2Ftemplates%2Fprint%2F&showPrintDialog=1#TOC-8.-Move-constructors-will-only-bind-to-non-const-rvalues
.