add test for string unicode

Author: boolangery

luaparser/parser/LuaLexerBase.py

@@ -22,7 +22,7 @@ def HandleComment(self):
                 self.read_long_string(cs, sep)
                 return
 
-        while cs.LA(1) != 12 and cs.LA(1) != -1:  # '\n'
+        while cs.LA(1) != 10 and cs.LA(1) != -1:  # '\n'
             cs.consume()
 
     def read_long_string(self, cs:InputStream, sep:int):

luaparser/tests/test_types_values.py

@@ -137,3 +137,10 @@ def test_string_dbl_square_equal(self):
             Block([Assign(targets=[Name("b")], values=[String("one [[two]] one")])])
         )
         self.assertEqual(exp, tree)
+
+    def test_string_literal(self):
+        tree = ast.parse(r'a="\u{9}"')
+        exp = Chunk(
+            Block([Assign(targets=[Name("a")], values=[String(r"\u{9}", delimiter=StringDelimiter.DOUBLE_QUOTE)])])
+        )
+        self.assertEqual(exp, tree)