use the new protobuf package and other minor stuff

Former-commit-id: 29bf71e8a73d34b27c6f5fe3f12c4ea1cc2b84b2

hero/binding_test.go

@@ -343,7 +343,7 @@ func TestBindingsForStruct(t *testing.T) {
 
 		controller3 struct {
 			Emb1 embedded1
-			emb2 embedded2
+			emb2 embedded2 // unused
 		}
 	)
 

hero/dependency.go

@@ -87,7 +87,7 @@ func resolveDependency(v reflect.Value, dest *Dependency, funcDependencies ...*D
 		len(funcDependencies) > 0 && fromDependentFunc(v, dest, funcDependencies)
 }
 
-func fromDependencyHandler(v reflect.Value, dest *Dependency) bool {
+func fromDependencyHandler(_ reflect.Value, dest *Dependency) bool {
 	// It's already on the desired form, just return it.
 	dependency := dest.OriginalValue
 	handler, ok := dependency.(DependencyHandler)

hero/func_result.go

@@ -4,10 +4,10 @@ import (
 	"reflect"
 	"strings"
 
-	"github.com/golang/protobuf/proto"
 	"github.com/kataras/iris/v12/context"
 
 	"github.com/fatih/structs"
+	"google.golang.org/protobuf/proto"
 )
 
 // ResultHandler describes the function type which should serve the "v" struct value.

hero/reflect.go

@@ -15,15 +15,6 @@ func valueOf(v interface{}) reflect.Value {
 	return reflect.ValueOf(v)
 }
 
-func typeOf(typ interface{}) reflect.Type {
-	if v, ok := typ.(reflect.Type); ok {
-		// check if it's already a reflect.Type.
-		return v
-	}
-
-	return reflect.TypeOf(typ)
-}
-
 // indirectType returns the value of a pointer-type "typ".
 // If "typ" is a pointer, array, chan, map or slice it returns its Elem,
 // otherwise returns the typ as it's.