Fix indentation bug in multi-line CSS selectors

* lisp/textmodes/css-mode.el (css--colon-inside-selector-p): Fix
indentation of multi-line CSS selectors that include both a
pseudo-class and parenthesis.

* test/manual/indent/css-mode.css: Add test for the above change.

lisp/textmodes/css-mode.el

@@ -1149,7 +1149,7 @@ This function is intended to be good enough to help SMIE during
 tokenization, but should not be regarded as a reliable function
 for determining whether point is within a selector."
   (save-excursion
-    (re-search-forward "[{};)]" nil t)
+    (re-search-forward "[{};]" nil t)
     (eq (char-before) ?\{)))
 
 (defun css--colon-inside-funcall ()

test/manual/indent/css-mode.css

@@ -66,6 +66,16 @@ div::before {
     );
 }
 
+/* Multi-line selector including both a pseudo-class and
+   parenthesis. */
+.form-group:not(.required) label,
+.birth-date .row > * {
+    &::after {
+        display: inline;
+        font-weight: normal;
+    }
+}
+
 @font-face {
     src: url("Sans-Regular.eot") format("eot"),
          url("Sans-Regular.woff") format("woff"),