qapi: Fix generation of 'size' builtin type

We were missing the 'size' builtin type (which means that QAPI using
[ 'size' ] would fail to compile).

Backports commit cb17f79eef0d161e81ac457e4c1f124405be2a18 from qemu

msvc/unicorn/qapi-types.c

@@ -135,6 +135,21 @@ void qapi_free_int8List(int8List *obj)
     qapi_dealloc_visitor_cleanup(md);
 }
 
+void qapi_free_sizeList(sizeList *obj)
+{
+    QapiDeallocVisitor *md;
+    Visitor *v;
+
+    if (!obj) {
+        return;
+    }
+
+    md = qapi_dealloc_visitor_new();
+    v = qapi_dealloc_get_visitor(md);
+    visit_type_sizeList(v, &obj, NULL, NULL);
+    qapi_dealloc_visitor_cleanup(md);
+}
+
 void qapi_free_uint64List(uint64List *obj)
 {
     QapiDeallocVisitor *md;

msvc/unicorn/qapi-types.h

@@ -77,6 +77,15 @@ typedef struct int8List
     struct int8List *next;
 } int8List;
 
+typedef struct sizeList
+{
+    union {
+        uint64_t value;
+        uint64_t padding;
+    };
+    struct sizeList *next;
+} sizeList;
+
 typedef struct uint64List
 {
     union {
@@ -199,6 +208,7 @@ void qapi_free_intList(intList *obj);
 void qapi_free_uint8List(uint8List *obj);
 void qapi_free_numberList(numberList *obj);
 void qapi_free_int8List(int8List *obj);
+void qapi_free_sizeList(sizeList *obj);
 void qapi_free_uint64List(uint64List *obj);
 void qapi_free_uint16List(uint16List *obj);
 void qapi_free_boolList(boolList *obj);

msvc/unicorn/qapi-visit.c

@@ -160,6 +160,30 @@ out:
     error_propagate(errp, err);
 }
 
+void visit_type_sizeList(Visitor *m, sizeList **obj, const char *name, Error **errp)
+{
+    Error *err = NULL;
+    GenericList *i, **prev;
+
+    visit_start_list(m, name, &err);
+    if (err) {
+        goto out;
+    }
+
+    for (prev = (GenericList **)obj;
+         !err && (i = visit_next_list(m, prev)) != NULL;
+         prev = &i) {
+        sizeList *native_i = (sizeList *)i;
+        visit_type_size(m, &native_i->value, NULL, &err);
+    }
+
+    error_propagate(errp, err);
+    err = NULL;
+    visit_end_list(m);
+out:
+    error_propagate(errp, err);
+}
+
 void visit_type_uint64List(Visitor *m, uint64List **obj, const char *name, Error **errp)
 {
     Error *err = NULL;

msvc/unicorn/qapi-visit.h

@@ -29,6 +29,7 @@ void visit_type_intList(Visitor *m, intList **obj, const char *name, Error **err
 void visit_type_uint8List(Visitor *m, uint8List **obj, const char *name, Error **errp);
 void visit_type_numberList(Visitor *m, numberList **obj, const char *name, Error **errp);
 void visit_type_int8List(Visitor *m, int8List **obj, const char *name, Error **errp);
+void visit_type_sizeList(Visitor *m, sizeList **obj, const char *name, Error **errp);
 void visit_type_uint64List(Visitor *m, uint64List **obj, const char *name, Error **errp);
 void visit_type_uint16List(Visitor *m, uint16List **obj, const char *name, Error **errp);
 void visit_type_boolList(Visitor *m, boolList **obj, const char *name, Error **errp);

qemu/scripts/qapi.py

@@ -29,6 +29,7 @@ builtin_types = {
     'uint16':   'QTYPE_QINT',
     'uint32':   'QTYPE_QINT',
     'uint64':   'QTYPE_QINT',
+    'size':     'QTYPE_QINT',
 }
 
 def error_path(parent):