refactor objects

internal/vm/vm_test.go

@@ -379,15 +379,15 @@ func TestHashLiterals(t *testing.T) {
 		{
 			"{1: 2, 2: 3}",
 			map[object.HashKey]int64{
-				(object.Integer{Value: 1}).HashKey(): 2,
-				(object.Integer{Value: 2}).HashKey(): 3,
+				(object.Integer{Value: 1}).Hash(): 2,
+				(object.Integer{Value: 2}).Hash(): 3,
 			},
 		},
 		{
 			"{1 + 1: 2 * 2, 3 + 3: 4 * 4}",
 			map[object.HashKey]int64{
-				(object.Integer{Value: 2}).HashKey(): 4,
-				(object.Integer{Value: 6}).HashKey(): 16,
+				(object.Integer{Value: 2}).Hash(): 4,
+				(object.Integer{Value: 6}).Hash(): 16,
 			},
 		},
 	}
@@ -400,14 +400,14 @@ func TestHashMerging(t *testing.T) {
 		{
 			`{} + {"a": 1}`,
 			map[object.HashKey]int64{
-				(object.String{Value: "a"}).HashKey(): 1,
+				(object.String{Value: "a"}).Hash(): 1,
 			},
 		},
 		{
 			`{"a": 1} + {"b": 2}`,
 			map[object.HashKey]int64{
-				(object.String{Value: "a"}).HashKey(): 1,
-				(object.String{Value: "b"}).HashKey(): 2,
+				(object.String{Value: "a"}).Hash(): 1,
+				(object.String{Value: "b"}).Hash(): 2,
 			},
 		},
 	}