toml: fix parsing array of tables (#12388)

vlib/toml/tests/array_of_tables_1_level_test.v

@@ -21,7 +21,6 @@ fn test_tables() {
 
 	toml_json := toml_doc.to_json()
 
-	eprintln(toml_json)
 	assert toml_json == os.read_file(
 		os.real_path(os.join_path(os.dir(@FILE), 'testdata', os.file_name(@FILE).all_before_last('.'))) +
 		'.out') or { panic(err) }

vlib/toml/tests/array_of_tables_2_level_test.v

@@ -0,0 +1,33 @@
+import os
+import toml
+
+const (
+	toml_text = '[[albums]]
+name = "Born to Run"
+
+  [[albums.songs]]
+  name = "Jungleland"
+
+  [[albums.songs]]
+  name = "Meeting Across the River"
+
+[[albums]]
+name = "Born in the USA"
+
+  [[albums.songs]]
+  name = "Glory Days"
+
+  [[albums.songs]]
+  name = "Dancing in the Dark"'
+)
+
+fn test_nested_array_of_tables() {
+	mut toml_doc := toml.parse(toml_text) or { panic(err) }
+
+	toml_json := toml_doc.to_json()
+
+	eprintln(toml_json)
+	assert toml_json == os.read_file(
+		os.real_path(os.join_path(os.dir(@FILE), 'testdata', os.file_name(@FILE).all_before_last('.'))) +
+		'.out') or { panic(err) }
+}

vlib/toml/tests/burntsushi.toml-test_test.v

@@ -27,9 +27,7 @@ const (
 		'datetime/no-leads-with-milli.toml',
 		'datetime/no-leads.toml',
 		// Key
-		'key/duplicate.toml',
 		'key/after-table.toml',
-		'key/duplicate-keys.toml',
 		'key/after-value.toml',
 		'key/no-eol.toml',
 		'key/after-array.toml',

vlib/toml/tests/testdata/array_of_tables_2_level_test.out

@@ -0,0 +1 @@
+{ "albums": [ { "name": "Born to Run", "songs": [ { "name": "Jungleland" }, { "name": "Meeting Across the River" } ] }, { "name": "Born in the USA", "songs": [ { "name": "Glory Days" }, { "name": "Dancing in the Dark" } ] } ] }