Markdown reader: remove some misguided list fanciness.

Previously we tried to handle things like commented out list
items:

    - one
    <!--
    - two
    -->
    - three

and also things like:

    - one `and
    - two` and

But the code we added to handle these cases caused problems with
other, more straightforward things, like:

    - one
    - ```
      code
      ```
    - three

So we are rolling back all the fanciness, so that the markdown
parser now behaves more like the commonmark parser, in which
indicators of block-level structure always take priority over
indicators of inline structure.

Closes #9865. Closes #7778. See also #5628.

1 files changed, 2 insertions, 6 deletions

diff --git a/test/markdown-reader-more.native b/test/markdown-reader-more.native
index 148cba944..cf5de564d 100644
--- a/test/markdown-reader-more.native
+++ b/test/markdown-reader-more.native
@@ -200,12 +200,8 @@ Pandoc
       , Str "item"
       ]
   , BulletList
-      [ [ Plain
-            [ Str "one"
-            , SoftBreak
-            , RawInline (Format "html") "<!--\n- two\n-->"
-            ]
-        ]
+      [ [ Plain [ Str "one" , SoftBreak , Str "<!\8211" ] ]
+      , [ Plain [ Str "two" , SoftBreak , Str "\8211>" ] ]
       , [ Plain [ Str "three" ] ]
       ]
   , Header