Add isLineIgnored() method.

Author: sebastianbergmann

PHP/CodeCoverage/Report/Node/File.php

@@ -284,6 +284,15 @@ public function getNumTestedFunctions()
         return $this->numTestedFunctions;
     }
 
+    /**
+     * @param  integer $line
+     * @return boolean
+     */
+    public function isLineIgnored($line)
+    {
+        return isset($this->ignoredLines[$line]);
+    }
+
     /**
      * Calculates coverage statistics for the file.
      */