Added a few more unit tests related to fixes in previous patches.
Added a few more unit tests related to fixes in previous patches.

VincentToups/parenscript,fredericksilva/Parenscript,manuel/parenscript,JackDanger/parenscript,JDReutt/parenscript,3b/parenscript,vsedach/Parenscript,JackDanger/parenscript,JackDanger/parenscript