encoder: inline tables create map in nil interface (#496)

Co-authored-by: Thomas Pelletier <pelletier.thomas@gmail.com>

unmarshaler_test.go

@@ -296,6 +296,17 @@ B = "data"`,
 				}
 			},
 		},
+		{
+			desc:  "standard empty table",
+			input: `[A]`,
+			gen: func() test {
+				var v map[string]interface{}
+				return test{
+					target:   &v,
+					expected: &map[string]interface{}{`A`: map[string]interface{}{}},
+				}
+			},
+		},
 		{
 			desc:  "inline table",
 			input: `Name = {First = "hello", Last = "world"}`,
@@ -316,6 +327,17 @@ B = "data"`,
 				}
 			},
 		},
+		{
+			desc:  "inline empty table",
+			input: `A = {}`,
+			gen: func() test {
+				var v map[string]interface{}
+				return test{
+					target:   &v,
+					expected: &map[string]interface{}{`A`: map[string]interface{}{}},
+				}
+			},
+		},
 		{
 			desc:  "inline table inside array",
 			input: `Names = [{First = "hello", Last = "world"}, {First = "ab", Last = "cd"}]`,
@@ -713,6 +735,7 @@ type Integer484 struct {
 func (i Integer484) MarshalText() ([]byte, error) {
 	return []byte(strconv.Itoa(i.Value)), nil
 }
+
 func (i *Integer484) UnmarshalText(data []byte) error {
 	conv, err := strconv.Atoi(string(data))
 	if err != nil {
@@ -895,7 +918,7 @@ func TestIssue287(t *testing.T) {
 	expected := map[string]interface{}{
 		"y": []interface{}{
 			[]interface{}{
-				nil,
+				map[string]interface{}{},
 			},
 		},
 	}