compiler: support alias to pointer type as method receiver
Fixes golang/go#28252. Reviewed-on: https://go-review.googlesource.com/c/160077 From-SVN: r268397
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@ -1,4 +1,4 @@
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5af8ee0693944c280b1f529450dbfd4ec1ee451d
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The first line of this file holds the git revision number of the last
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merge done from the gofrontend repository.
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@ -1944,6 +1944,10 @@ Gogo::start_function(const std::string& name, Function_type* type,
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go_assert(at_top_level);
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Type* rtype = type->receiver()->type();
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while (rtype->named_type() != NULL
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&& rtype->named_type()->is_alias())
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rtype = rtype->named_type()->real_type()->forwarded();
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// We want to look through the pointer created by the
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// parser, without getting an error if the type is not yet
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// defined.
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