runtime: always incorporate hash seed at start of hash computation
Otherwise we can get predictable collisions.
R=golang-dev, dave, patrick, rsc
CC=golang-dev
https://golang.org/cl/7051043
diff --git a/src/pkg/runtime/runtime.h b/src/pkg/runtime/runtime.h
index 0c941f8..a228b06 100644
--- a/src/pkg/runtime/runtime.h
+++ b/src/pkg/runtime/runtime.h
@@ -644,8 +644,8 @@
void runtime·mallocinit(void);
bool runtime·ifaceeq_c(Iface, Iface);
bool runtime·efaceeq_c(Eface, Eface);
-uintptr runtime·ifacehash(Iface);
-uintptr runtime·efacehash(Eface);
+uintptr runtime·ifacehash(Iface, uintptr);
+uintptr runtime·efacehash(Eface, uintptr);
void* runtime·malloc(uintptr size);
void runtime·free(void *v);
bool runtime·addfinalizer(void*, void(*fn)(void*), uintptr);
