added test case for content inside a blockquote

Author: JohannesKaufmann

testdata/TestCommonmark/blockquote/goldmark.golden

@@ -13,3 +13,13 @@ Next Line</p>
 </blockquote>
 <p>Back to the first level.</p>
 </blockquote>
+<blockquote>
+<h2>This is a header.</h2>
+<ol>
+<li>This is the first list item.</li>
+<li>This is the second list item.</li>
+</ol>
+<p>A code block:</p>
+<pre><code>return 1 &lt; 2 ? shell_exec('echo $input | $markdown_script') : 0;
+</code></pre>
+</blockquote>

testdata/TestCommonmark/blockquote/input.html

@@ -22,4 +22,16 @@
 	<p>This is a paragraph in a nested blockquote.</p>
 	</blockquote>
 	<p>Back to the first level.</p>
+</blockquote>
+
+
+<!--html content inside a blockquote-->
+<blockquote>
+	<h2>This is a header.</h2>
+	<ol>
+	<li>This is the first list item.</li>
+	<li>This is the second list item.</li>
+	</ol>
+	<p>A code block:</p>
+	<pre><code>return 1 &lt; 2 ? shell_exec('echo $input | $markdown_script') : 0;</code></pre>
 </blockquote>

testdata/TestCommonmark/blockquote/output.default.golden

@@ -9,4 +9,15 @@
 >
 > > This is a paragraph in a nested blockquote.
 >
-> Back to the first level.
+> Back to the first level.
+
+> ## This is a header.
+>
+> 1. This is the first list item.
+> 2. This is the second list item.
+>
+> A code block:
+>
+> ```
+> return 1 < 2 ? shell_exec('echo $input | $markdown_script') : 0;
+> ```