Run extension tests at all protocols.

Change-Id: Ied0ef856de3a1ae2c65b10645fbce614726f4e20
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/44989
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>

util/testresult/testresult.go

@@ -18,6 +18,7 @@ package testresult
 
 import (
 	"encoding/json"
+	"fmt"
 	"os"
 	"time"
 )
@@ -44,7 +45,7 @@ func NewResults() *Results {
 
 func (t *Results) addResult(name, result, expected string) {
 	if _, found := t.Tests[name]; found {
-		panic(name)
+		panic(fmt.Sprintf("duplicate test name %q", name))
 	}
 	t.Tests[name] = Result{
 		Actual:       result,