The catch had been introduced in 953fb41c82, seemingly to catch the case
PSERROR_Scripting_LoadFile_OpenFailed from 1e40ed1543 which was removed
in 4b1297b328, refs D2363.
The LoadGlobalScript and LoadGlobalScriptFile functions don't throw
these errors unless that JS code calls broken C++ code throwing that.
In that case catching the error and continuing like nothing happened
leads to subsequent segfaults and similarly severe errors caused by C++,
not XML.
Differential Revision: https://code.wildfiregames.com/D2366
Tested on: clang 9.0.0, gcc 9.2.0, Jenkins/vs2015
Accepted By: nani
This was SVN commit r23068.