tree edd8933d49be0066e1f267645571af314f74375d
parent a5b1530557833708050c0e2508ffeaab1bf8bc29
author Russ Cox <rsc@golang.org> 1397663547 -0400
committer Russ Cox <rsc@golang.org> 1397663547 -0400
golang-hg a0ba4e1b909d99d004080d09419e09b7d4e3f9d1

reflect: correct type descriptor for call of interface method

When preparing a call with an interface method, the argument
frame holds the receiver "iword", but funcLayout was being
asked to write a descriptor as if the receiver were a complete
interface value. This was originally caught by running a large
program with Debug=3 in runtime/mgc0.c, but the new panic
in funcLayout suffices to catch the mistake with the existing
tests.

Fixes #7748.

LGTM=bradfitz, iant
R=golang-codereviews, bradfitz, iant
CC=golang-codereviews, khr
https://golang.org/cl/88100048