qobject: Add helper macros for common scalar insertions

Rather than making lots of callers wrap a scalar in a QInt, QString,
or QBool, provide helper macros that do the wrapping automatically.

Update the Coccinelle script to make mass conversions easy, although
the conversion itself will be done as a separate patches to ease
review and backport efforts.

Backports commit a92c21591b5bb9543996538f14854ca6b528318b from qemu

qemu/include/qapi/qmp/qdict.h

@@ -53,6 +53,14 @@ void qdict_destroy_obj(QObject *obj);
 #define qdict_put(qdict, key, obj) \
         qdict_put_obj(qdict, key, QOBJECT(obj))
 
+/* Helpers for int, bool, and string */
+#define qdict_put_int(qdict, key, value) \
+        qdict_put(qdict, key, qint_from_int(value))
+#define qdict_put_bool(qdict, key, value) \
+        qdict_put(qdict, key, qbool_from_bool(value))
+#define qdict_put_str(qdict, key, value) \
+        qdict_put(qdict, key, qstring_from_str(value))
+
 /* High level helpers */
 double qdict_get_double(const QDict *qdict, const char *key);
 int64_t qdict_get_int(const QDict *qdict, const char *key);

qemu/include/qapi/qmp/qlist.h

@@ -29,6 +29,14 @@ typedef struct QList {
 #define qlist_append(qlist, obj) \
         qlist_append_obj(qlist, QOBJECT(obj))
 
+/* Helpers for int, bool, and string */
+#define qlist_append_int(qlist, value) \
+        qlist_append(qlist, qint_from_int(value))
+#define qlist_append_bool(qlist, value) \
+        qlist_append(qlist, qbool_from_bool(value))
+#define qlist_append_str(qlist, value) \
+        qlist_append(qlist, qstring_from_str(value))
+
 #define QLIST_FOREACH_ENTRY(qlist, var)             \
         for ((var) = ((qlist)->head.tqh_first);     \
             (var);                                  \