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/test-qmp-event.c b/tests/test-qmp-event.c
index 31f35b3..bb10366 100644
--- a/tests/test-qmp-event.c
+++ b/tests/test-qmp-event.c
@@ -60,22 +60,22 @@
 
     switch (qobject_type(obj1)) {
     case QTYPE_QBOOL:
-        d->result = (qbool_get_bool(qobject_to_qbool(obj1)) ==
-                     qbool_get_bool(qobject_to_qbool(obj2)));
+        d->result = (qbool_get_bool(qobject_to(QBool, obj1)) ==
+                     qbool_get_bool(qobject_to(QBool, obj2)));
         return;
     case QTYPE_QNUM:
-        g_assert(qnum_get_try_int(qobject_to_qnum(obj1), &val1));
-        g_assert(qnum_get_try_int(qobject_to_qnum(obj2), &val2));
+        g_assert(qnum_get_try_int(qobject_to(QNum, obj1), &val1));
+        g_assert(qnum_get_try_int(qobject_to(QNum, obj2), &val2));
         d->result = val1 == val2;
         return;
     case QTYPE_QSTRING:
-        d->result = g_strcmp0(qstring_get_str(qobject_to_qstring(obj1)),
-                              qstring_get_str(qobject_to_qstring(obj2))) == 0;
+        d->result = g_strcmp0(qstring_get_str(qobject_to(QString, obj1)),
+                              qstring_get_str(qobject_to(QString, obj2))) == 0;
         return;
     case QTYPE_QDICT:
-        d_new.expect = qobject_to_qdict(obj2);
+        d_new.expect = qobject_to(QDict, obj2);
         d_new.result = true;
-        qdict_iter(qobject_to_qdict(obj1), qdict_cmp_do_simple, &d_new);
+        qdict_iter(qobject_to(QDict, obj1), qdict_cmp_do_simple, &d_new);
         d->result = d_new.result;
         return;
     default: