gnu: qtdeclarative: Update to 6.6.2.

* gnu/packages/qt.scm (qtdeclarative): Update to 6.6.2.
[arguments]<#:phases>: Disable flaky tst_qmltyperegistrar test.  Disable
failing tst_qquickiconimage test.
* gnu/packages/patches/qtdeclarative-disable-qmlcache.patch: Adjust it.

Change-Id: Ic7ddb603524ff07916d57b2ce92b7ffa407a5004
Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>

gnu/packages/patches/qtdeclarative-disable-qmlcache.patch

@@ -1,16 +1,31 @@
 Retrieved from
 https://raw.githubusercontent.com/NixOS/nixpkgs/master/pkgs/development/libraries/qt-6/patches/qtdeclarative-default-disable-qmlcache.patch
 
+From 2d561e0a80f2d123a7348187975ee845f9dcd9e0 Mon Sep 17 00:00:00 2001
+From: Nick Cao <nickcao@nichi.co>
+Date: Tue, 10 Oct 2023 11:12:27 -0400
+Subject: [PATCH] qtdeclarative: disable qml disk cache
+
+---
+ src/qml/jsruntime/qv4engine.cpp | 6 +-----
+ 1 file changed, 1 insertion(+), 5 deletions(-)
+
 diff --git a/src/qml/jsruntime/qv4engine.cpp b/src/qml/jsruntime/qv4engine.cpp
-index 852cde9e..165f1b57 100644
+index d1b4c4fff6..50f8a07420 100644
 --- a/src/qml/jsruntime/qv4engine.cpp
 +++ b/src/qml/jsruntime/qv4engine.cpp
-@@ -2093,7 +2093,7 @@ void ExecutionEngine::registerModule(const QString &_name, const QJSValue &modul
- 
- bool ExecutionEngine::diskCacheEnabled() const
+@@ -2232,11 +2232,7 @@ ExecutionEngine::DiskCacheOptions ExecutionEngine::diskCacheOptions() const
  {
--    return (!disableDiskCache() && !debugger()) || forceDiskCache();
-+    return forceDiskCache();
+     if (forceDiskCache())
+         return DiskCache::Enabled;
+-    if (disableDiskCache() || debugger())
+-        return DiskCache::Disabled;
+-    static const DiskCacheOptions options = qmlGetConfigOption<
+-            DiskCacheOptions, transFormDiskCache>("QML_DISK_CACHE");
+-    return options;
++    return DiskCache::Disabled;
  }
  
  void ExecutionEngine::callInContext(QV4::Function *function, QObject *self,
+-- 
+2.42.0

gnu/packages/qt.scm

@@ -1491,14 +1491,14 @@ with JavaScript and C++.")))
 (define-public qtdeclarative
   (package
     (name "qtdeclarative")
-    (version "6.5.2")
+    (version "6.6.2")
     ;; TODO: Package 'masm' and unbundle from sources.
     (source (origin
               (method url-fetch)
               (uri (qt-url name version))
               (sha256
                (base32
-                "06c7xfqn2a5s2m8j1bcvx3pyjqg1rgqkjvp49737gb4z9vjiz8gk"))
+                "0k6qndjvkkx3g8lr7f64xx86b3cwxzkgpl6fr6cp73s6qjkyk763"))
               (patches (search-patches "qtdeclarative-disable-qmlcache.patch"))))
     (outputs '("out" "debug"))
     (build-system cmake-build-system)
@@ -1568,6 +1568,10 @@ with JavaScript and C++.")))
                   "("
                   (string-join
                    (list
+                    ;; The 'tst_qmltyperegistrar' tests may fail
+                    ;; non-deterministically (see:
+                    ;; https://bugreports.qt.io/browse/QTBUG-123634).
+                    "tst_qmltyperegistrar"
                     ;; This test is marked as flaky upstream (see:
                     ;; https://bugreports.qt.io/browse/QTBUG-101488).
                     "tst_qquickfiledialogimpl"
@@ -1610,7 +1614,11 @@ with JavaScript and C++.")))
                     "tst_dom_all"
                     "tst_qmlls"
                     "tst_qmllscompletions"
-                    ) "|")
+
+                    ;; This test fails starting with 6.6.2 (see:
+                    ;; https://bugreports.qt.io/browse/QTBUG-123748), for
+                    ;; unknown reasons.
+                    "tst_qquickiconimage") "|")
                   ")")))))
           (add-after 'install 'delete-installed-tests
             (lambda _