Introspect of daemons missing links to some request files

Global static initialization is used to populate a SandeshHttp
static map with the names of the sandesh IDL files that contain
requests for introspect for a daemon. The static declaration and
definition is done in _html.cpp. In order for the linker to include
the symbols in that translation unit a standalone int is also defined
in the file and used in _types.cpp. However the current usage was just
assigning another static variable this int and as a result the symbols
in the _html.cpp were not included and the map was not populated.
Changed the generated code to assign a value to the standalone int
as part of RequestFromHttp function so that symbols from the
_html.cpp translation units are pulled in.

Change-Id: Id5515bb75fab093fbc62bcebf8fecb5dbed2be9c
Closes-Bug: #1691605
Closes-Bug: #1691949
(cherry picked from commit 4074d8a)

compiler/generate/t_cpp_generator.cc

@@ -3713,8 +3713,7 @@ void t_cpp_generator::generate_sandesh_http_reader(ofstream& out,
 	const vector<t_field*>& fields = tsandesh->get_members();
 	vector<t_field*>::const_iterator f_iter;
 
-        indent(out) << tsandesh->get_name() <<
-        "_reference = " << program_name_ << "_marker;" << endl; 
+        indent(out) << program_name_ << "_marker = 0;" << endl;
 	// Declare stack tmp variables
 	out << endl << 
             indent() << "using std::string;"  << endl <<
@@ -4490,8 +4489,6 @@ void t_cpp_generator::generate_sandesh_creator(ofstream& out,
     // Creator function name
     if (((t_base_type *)t)->is_sandesh_request()) {
         indent(out) << "extern int " << program_name_ << "_marker;" << endl;
-        indent(out) << "static int " << tsandesh->get_name() << 
-        "_reference;" << endl; 
         // Request registration
         indent(out) << "SANDESH_REGISTER_DEF_TYPE(" << tsandesh->get_name() <<
                 ");" << endl << endl;