update proto library prior to avoid New* methods.
diffs generated automatically from Google-internal copy.
all tests pass

R=rsc, dsymonds1
CC=dsymonds
http://codereview.appspot.com/1908042
diff --git a/compiler/testdata/main.go b/compiler/testdata/main.go
index 29100be..ed81320 100644
--- a/compiler/testdata/main.go
+++ b/compiler/testdata/main.go
@@ -39,6 +39,6 @@
 )
 
 func main() {
-	_ = my_test.NewRequest()
-	_ = multitest.NewMulti1()
+	_ = &my_test.Request{}
+	_ = &multitest.Multi1{}
 }