fixed a bug regarding wide class comparisons
fixed a bug regarding wide class comparisons

Fixed the handling of wide classes that are nil within the
_WIDE_CLASS_EQ and _WIDE_CLASS_NE.  We used to miss the case where
both wide classes are nil but the locales are different.  We should
say that nil is equal to nil regardless of what locale the class is
said to exist on.  This should fix the linked3 regressions.


git-svn-id: 88467cb1fb04b8a755be7e1ee1026be4190196ef@13778 3a8e244f-b0f2-452b-bcba-4c88e055c3ca

sungeunchoi/chapel,CoryMcCartan/chapel,chizarlicious/chapel,hildeth/chapel,hildeth/chapel,hildeth/chapel,chizarlicious/chapel,chizarlicious/chapel,hildeth/chapel,chizarlicious/chapel,sungeunchoi/chapel,sungeunchoi/chapel,sungeunchoi/chapel,sungeunchoi/chapel,sungeunchoi/chapel,hildeth/chapel,hildeth/chapel,CoryMcCartan/chapel,chizarlicious/chapel,chizarlicious/chapel,sungeunchoi/chapel,CoryMcCartan/chapel,sungeunchoi/chapel,hildeth/chapel,chizarlicious/chapel,CoryMcCartan/chapel,CoryMcCartan/chapel,CoryMcCartan/chapel,CoryMcCartan/chapel