Add dump command

Change-Id: If38d01ebb8788090f91a76daf6b7fc9add0320b7
diff --git a/src/ast_commands.cpp b/src/ast_commands.cpp
index 1b89a6c..425249e 100644
--- a/src/ast_commands.cpp
+++ b/src/ast_commands.cpp
@@ -41,3 +41,8 @@
 {
     return this->m_source == other.m_source && this->m_destination == other.m_destination;
 }
+
+bool dump_::operator==(const dump_& other) const
+{
+    return this->m_format == other.m_format;
+}