Regenerated the parser.

src/plugins/qtscripteditor/parser/gen.sh

src/plugins/qtscripteditor/parser/javascriptgrammar.cpp

src/plugins/qtscripteditor/parser/javascriptgrammar_p.h

src/plugins/qtscripteditor/parser/javascriptparser.cpp

src/plugins/qtscripteditor/parser/javascriptparser_p.h