[llvm] r233767 - [WinEH] Generate .xdata for catch handlers

[Kaylor, Andrew]

>A catch number has multiple states (it can have multiple cleanups, etc.).  We believe CatchHigh is the largest such state number in any of a try's catch handlers.

>Erm, that should read "A catch *handler* has multiple states".  Sorry if there was any confusion.

Do you mean the states from which the handler can catch an exception or the states while the handler is executing?  Even assuming you mean the latter, I suppose you’re right that there can be more than one.
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