update server reflection code to comply with the change to the grpc generator

benchmark/grpc_testing/services.pb.go

@@ -24,7 +24,7 @@ var _ grpc.ClientConn
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion3
+const _ = grpc.SupportPackageIsVersion4
 
 // Client API for BenchmarkService service
 

examples/helloworld/helloworld/helloworld.pb.go

@@ -65,7 +65,7 @@ var _ grpc.ClientConn
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion3
+const _ = grpc.SupportPackageIsVersion4
 
 // Client API for Greeter service
 

examples/route_guide/routeguide/route_guide.pb.go

@@ -156,7 +156,7 @@ var _ grpc.ClientConn
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion3
+const _ = grpc.SupportPackageIsVersion4
 
 // Client API for RouteGuide service
 

grpclb/grpc_lb_v1/grpclb.pb.go

@@ -420,7 +420,7 @@ var _ grpc.ClientConn
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion3
+const _ = grpc.SupportPackageIsVersion4
 
 // Client API for LoadBalancer service
 

health/grpc_health_v1/health.pb.go

@@ -90,7 +90,7 @@ var _ grpc.ClientConn
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion3
+const _ = grpc.SupportPackageIsVersion4
 
 // Client API for Health service
 

interop/grpc_testing/test.pb.go

@@ -407,7 +407,7 @@ var _ grpc.ClientConn
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion3
+const _ = grpc.SupportPackageIsVersion4
 
 // Client API for TestService service
 

reflection/grpc_reflection_v1alpha/reflection.pb.go

@@ -544,7 +544,7 @@ var _ grpc.ClientConn
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion3
+const _ = grpc.SupportPackageIsVersion4
 
 // Client API for ServerReflection service
 

reflection/grpc_testing/test.pb.go

@@ -66,7 +66,7 @@ var _ grpc.ClientConn
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion3
+const _ = grpc.SupportPackageIsVersion4
 
 // Client API for SearchService service
 

reflection/serverreflection.go

@@ -251,11 +251,12 @@ func (s *serverReflectionServer) fileDescEncodingContainingSymbol(name string) (
 		}
 
 		// Metadata not valid.
-		enc, ok := meta.([]byte)
+		fileNameForMeta, ok := meta.(string)
 		if !ok {
 			return nil, fmt.Errorf("invalid file descriptor for symbol: %v", name)
 		}
 
+		enc := proto.FileDescriptor(fileNameForMeta)
 		fd, err = s.decodeFileDesc(enc)
 		if err != nil {
 			return nil, err

rpc_util.go

@@ -448,10 +448,10 @@ func convertCode(err error) codes.Code {
 	return codes.Unknown
 }
 
-// SupportPackageIsVersion3 is referenced from generated protocol buffer files
+// SupportPackageIsVersion4 is referenced from generated protocol buffer files
 // to assert that that code is compatible with this version of the grpc package.
 //
 // This constant may be renamed in the future if a change in the generated code
 // requires a synchronised update of grpc-go and protoc-gen-go. This constant
 // should not be referenced from any other code.
-const SupportPackageIsVersion3 = true
+const SupportPackageIsVersion4 = true

stress/grpc_testing/metrics.pb.go

@@ -205,7 +205,7 @@ var _ grpc.ClientConn
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion3
+const _ = grpc.SupportPackageIsVersion4
 
 // Client API for MetricsService service
 

test/grpc_testing/test.pb.go

@@ -360,7 +360,7 @@ var _ grpc.ClientConn
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion3
+const _ = grpc.SupportPackageIsVersion4
 
 // Client API for TestService service