qemu-common: Move qemu_isalnum() etc. to qemu/ctype.h

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-3-armbru@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
diff --git a/qapi/qapi-util.c b/qapi/qapi-util.c
index e9b266b..29a6c98 100644
--- a/qapi/qapi-util.c
+++ b/qapi/qapi-util.c
@@ -12,7 +12,7 @@
 
 #include "qemu/osdep.h"
 #include "qapi/error.h"
-#include "qemu-common.h"
+#include "qemu/ctype.h"
 
 const char *qapi_enum_lookup(const QEnumLookup *lookup, int val)
 {