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Go patch committed: Rework type and package tracking in exporter


This Go frontend patch by Than McIntosh revamps the way the exporter
tracks exported types and imported packages that need to be mentioned
in the export data.

The previous implementation wasn't properly handling the case where an
exported non-inlinable function refers to an imported type whose
method set includes an inlinable function whose body makes a call to a
function in another package that's not directly used in the original
package.

This patch integrates together two existing traversal helper classes,
"Collect_references_from_inline" and "Find_types_to_prepare" into a
single helper "Collect_export_references", so as to have common/shared
code that looks for indirectly imported packages.

This fixes https://golang.org/issue/32778.

Bootstrapped and ran Go testsuite on x86_64-pc-linux-gnu.  Committed
to mainline.

Ian

Attachment: patch.txt
Description: Text document


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