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Matthew Dempsky authored
Use a map to detect duplicate symbols. Allows eliminating an otherwise unneeded field from Sym and gets rid of a global variable. Change-Id: Ic004bca7e9130a1261a1cddbc17244529a2a1df4 Reviewed-on: https://go-review.googlesource.com/20552Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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