fix span bug #3180 #3181
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fix span bug #3180 #3181
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cartermp
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Jun 6, 2017
KevinRansom
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Jun 6, 2017
KevinRansom
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Jun 6, 2017
nosami
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This is a stabilization fix to ensure that problems with spans are not catastrophic
See #3180
The technique is simply to use the "Try" version of the FSharpRangeToTextSpan function everywhere, and to make FSharpRangeToTextSpan itself fail less often, trimming to the range of the document