Fixed CPP lexer to work correctly when the '{' starting a fold section that is folded is deleted. This leads to the fold being unfolded which leads to reentrant styling which failed.
Fixed CPP lexer to work correctly when the '{' starting a fold section
that is folded is deleted. This leads to the fold being unfolded which
leads to reentrant styling which failed.

timonwong/foo_uie_wsh_panel_mod.scintilla,timonwong/foo_uie_wsh_panel_mod.scintilla,timonwong/foo_uie_wsh_panel_mod.scintilla,timonwong/foo_uie_wsh_panel_mod.scintilla,timonwong/foo_uie_wsh_panel_mod.scintilla,timonwong/foo_uie_wsh_panel_mod.scintilla,timonwong/foo_uie_wsh_panel_mod.scintilla,timonwong/foo_uie_wsh_panel_mod.scintilla