QmlJS: Add support for annotations in qmljsreformatter

This fixes that the annotations are removed. The indentation
still has issues.

Change-Id: I6752767e00e0fafe8eb567066db3b9952f0d0a4f
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

src/libs/qmljs/qmljsreformatter.cpp

@@ -590,14 +590,35 @@ protected:
         return true;
     }
 
-    bool visit(UiObjectDefinition *ast) override
+    bool visit(UiAnnotation *ast) override
     {
+        out("@");
         accept(ast->qualifiedTypeNameId);
         out(" ");
         accept(ast->initializer);
         return false;
     }
 
+    bool visit(UiAnnotationList *ast) override
+    {
+        for (UiAnnotationList *it = ast; it; it = it->next) {
+            accept(it->annotation);
+            newLine();
+        }
+        return false;
+    }
+
+    bool visit(UiObjectDefinition *ast) override
+    {
+        accept(ast->annotations);
+
+        accept(ast->qualifiedTypeNameId);
+        out(" ");
+        accept(ast->initializer);
+
+        return false;
+    }
+
     bool visit(UiObjectInitializer *ast) override
     {
         out(ast->lbraceToken);
@@ -687,9 +708,12 @@ protected:
 
     bool visit(UiScriptBinding *ast) override
     {
+        accept(ast->annotations);
+
         accept(ast->qualifiedId);
         out(": ", ast->colonToken);
         accept(ast->statement);
+
         return false;
     }
 
@@ -1290,6 +1314,7 @@ protected:
     {
         for (UiObjectMemberList *it = ast; it; it = it->next) {
             accept(it->member);
+
             if (it->next)
                 newLine();
         }

tests/auto/qml/reformatter/annotations.qml

@@ -0,0 +1,22 @@
+import QtQuick
+
+@Annotation {}
+Item {
+    // properties
+    property int foo
+    property alias bar: x
+                        @Annotation2 {
+                            someproperty: 10
+                        }
+    id: someId
+
+        @Annotation3 {
+            someproperty: 10
+        }
+    Rectangle {
+        // properties
+        property int foo
+        property alias bar: x
+        id: someId2
+    }
+}