qapi: Replace qobject_to_X(o) by qobject_to(X, o)

This patch was generated using the following Coccinelle script:

@@
expression Obj;
@@
(
- qobject_to_qnum(Obj)
+ qobject_to(QNum, Obj)
|
- qobject_to_qstring(Obj)
+ qobject_to(QString, Obj)
|
- qobject_to_qdict(Obj)
+ qobject_to(QDict, Obj)
|
- qobject_to_qlist(Obj)
+ qobject_to(QList, Obj)
|
- qobject_to_qbool(Obj)
+ qobject_to(QBool, Obj)
)

and a bit of manual fix-up for overly long lines and three places in
tests/check-qjson.c that Coccinelle did not find.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-Id: <20180224154033.29559-4-mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: swap order from qobject_to(o, X), rebase to master, also a fix
to latent false-positive compiler complaint about hw/i386/acpi-build.c]
Signed-off-by: Eric Blake <eblake@redhat.com>
diff --git a/tests/libqtest.c b/tests/libqtest.c
index 13c9100..200b2b9 100644
--- a/tests/libqtest.c
+++ b/tests/libqtest.c
@@ -430,7 +430,7 @@
     }
 
     g_assert(!qmp->response);
-    qmp->response = qobject_to_qdict(obj);
+    qmp->response = qobject_to(QDict, obj);
     g_assert(qmp->response);
 }
 
@@ -1008,11 +1008,11 @@
     g_assert(list);
 
     for (p = qlist_first(list); p; p = qlist_next(p)) {
-        minfo = qobject_to_qdict(qlist_entry_obj(p));
+        minfo = qobject_to(QDict, qlist_entry_obj(p));
         g_assert(minfo);
         qobj = qdict_get(minfo, "name");
         g_assert(qobj);
-        qstr = qobject_to_qstring(qobj);
+        qstr = qobject_to(QString, qobj);
         g_assert(qstr);
         mname = qstring_get_str(qstr);
         cb(mname);