tree d7ed5eb277f4c26da808c23349764525613ad0f8
parent a69656e0e2d271df86336e3f498cf180de2be9c4
author Alan Donovan <adonovan@google.com> 1478898362 -0500
committer Alan Donovan <adonovan@google.com> 1478899628 +0000

go/gcimporter15: pretend blank fields have same owner

The export data formats (text and binary) emitted by gc in Go 1.7 did
not record the package that "owns" each blank field, even though blank
is an unexported identifier.  Before, gcimporter would assume the
package of the export data file owns blank fields within it, even
blank fields reexported from another package.  As a result, identical
types would become nonidentical during reexporting.

For bug compatibility with gc, gcimporter now treats blank fields as
if they all belong to the same dummy package, avoiding spurious "can't
assign A to B" errors in tools based on go/types.

Change-Id: I0dbf71491a0ec0f376e9dc8a91efe0376c855a28
Reviewed-on: https://go-review.googlesource.com/33146
Reviewed-by: Robert Griesemer <gri@golang.org>