[PATCH] Option parsing: support case-insensitive option matching.

[Reid Kleckner]

  As discussed in person, I really think this should go on the table.  We can always sort the table case insensitively (since it has the side effect of producing nicer help), and then just mark each OptTable as case sensitive or not.


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Comment at: utils/TableGen/OptParserEmitter.cpp:14
@@ -13,2 +13,3 @@
 #include "llvm/ADT/Twine.h"
+#include "llvm/Option/OptTable.h"
 #include "llvm/TableGen/Record.h"
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This creates a bit of a circular dependency, but other generators do it too.


http://llvm-reviews.chandlerc.com/D1485