Move point past comment opening

Fixes GH-117, where <!-- > test --> was not being highlighted
or uncommented correctly.

markdown-mode.el

@@ -1910,13 +1910,15 @@ start which was previously propertized."
       (let ((open-beg (match-beginning 0)))
         (put-text-property open-beg (1+ open-beg)
                            'syntax-table (string-to-syntax "<"))
-        (markdown-syntax-propertize-comments (1+ open-beg) end)))
+        (markdown-syntax-propertize-comments
+         (min (1+ (match-end 0)) end (point-max)) end)))
      ;; Comment end
      ((and in-comment
            (re-search-forward markdown-regex-comment-end end t))
       (put-text-property (1- (match-end 0)) (match-end 0)
                          'syntax-table (string-to-syntax ">"))
-      (markdown-syntax-propertize-comments (match-end 0) end))
+      (markdown-syntax-propertize-comments
+       (min (1+ (match-end 0)) end (point-max)) end))
      ;; Nothing found
      (t nil))))
 

tests/markdown-test.el

@@ -2245,6 +2245,12 @@ for (var i = 0; i < 10; i++) {
    (markdown-test-range-face-equals (point-min) (1- (point-max))
                                     markdown-comment-face)))
 
+(ert-deftest test-markdown-font-lock/comment-angle-bracket ()
+  "Regression test for GH-117."
+  (markdown-test-string "<!-- > test -->"
+   (markdown-test-range-face-equals (point-min) (1- (point-max))
+                                    markdown-comment-face)))
+
 (ert-deftest test-markdown-font-lock/footnote-markers-links ()
   "Test an edge case involving footnote markers and inline reference links."
   (markdown-test-string "Harvard[^1] [tuition][]"