cmd/gc: re-enable IfacePointerOnly

CL 130240043 did this but broke ARM, because
it made newErrorCString start allocating, so we rolled
it back in CL 133810043.

CL 133820043 removed that allocation.

Try again.

Fixes #8405.

LGTM=bradfitz, dave
R=golang-codereviews, bradfitz
CC=dave, golang-codereviews, r
https://golang.org/cl/133830043

diff --git a/src/cmd/gc/subr.c b/src/cmd/gc/subr.c
index 325614e6bcf20f30c7e5d816b2601f65b390f033..081c373a889cc4f85d903350ed9305f8746b08d2 100644 (file)
--- a/src/cmd/gc/subr.c
+++ b/src/cmd/gc/subr.c
@@ -3808,7 +3808,7 @@ isdirectiface(Type *t)
        // where the data word can hold a pointer or any
        // non-pointer value no bigger than a pointer.
        enum {
-               IfacePointerOnly = 0,
+               IfacePointerOnly = 1,
        };
 
        if(IfacePointerOnly) {