Fixed more tests

Author: javiereguiluz

tests/fixtures/expected/main/datetime.html

@@ -140,7 +140,10 @@ <h3 id="placeholder">
                                                         \
                                                         <span class="hljs-title">DateTimeType</span>
                                                         ; 
-                                                        <span class="hljs-variable">$builder</span>
+                                                        <span class="hljs-variable">
+                                                            <span class="hljs-variable-other-marker">$</span>
+                                                            builder
+                                                        </span>
                                                         <span class="hljs-operator">-&gt;</span>
                                                         add(
                                                         <span class="hljs-string">'startDateTime'</span>
@@ -397,7 +400,10 @@ <h3 id="error-bubbling">
                                         <div class="highlight">
                                             <pre class="hljs php">
                                                                     <span class="hljs-comment">// app/config/config.php</span>
-                                                                    <span class="hljs-variable">$container</span>
+                                                                    <span class="hljs-variable">
+                                                                        <span class="hljs-variable-other-marker">$</span>
+                                                                        container
+                                                                    </span>
                                                                     <span class="hljs-operator">-&gt;</span>
                                                                     loadFromExtension(
                                                                     <span class="hljs-string">'framework'</span>