update set_included_ranges to modify extent if the current position is at the very beginning of the included range

cli/src/tests/parser_test.rs

@@ -872,6 +872,48 @@ fn test_parsing_with_multiple_included_ranges() {
     );
 }
 
+#[test]
+fn test_parsing_with_included_range_at_the_beginning_of_file() {
+    let source_code = "<div>test</div>{_ignore_this_part_}";
+
+    let mut parser = Parser::new();
+    parser.set_language(get_language("html")).unwrap();
+
+    let end_byte = source_code.find("{_ignore_this_part_").unwrap();
+
+    let range_to_parse = Range {
+        start_byte: 0,
+        start_point: Point {
+            row: 10,
+            column: 12,
+        },
+        end_byte,
+        end_point: Point {
+            row: 10,
+            column: 12 + end_byte,
+        },
+    };
+
+    parser.set_included_ranges(&[range_to_parse]).unwrap();
+
+    let mut callback = |offset, _point| {
+        if offset == 0 {
+            source_code.as_bytes()
+        } else {
+            &[]
+        }
+    };
+
+    let html_tree = parser.parse_with(&mut callback, None).unwrap();
+
+    assert_eq!(html_tree.root_node().range(), range_to_parse,);
+
+    assert_eq!(
+        html_tree.root_node().to_sexp(),
+        "(fragment (element (start_tag (tag_name)) (text) (end_tag (tag_name))))"
+    );
+}
+
 #[test]
 fn test_parsing_error_in_invalid_included_ranges() {
     let mut parser = Parser::new();