QmlDesigner: Do license check only once

We should only make the license check once.
An evaluationLicense is handled as enterprise license.

Change-Id: Ib4b53795a7d735c10b5238f1e7b76346a9bcc8e1
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/plugins/qmldesigner/dynamiclicensecheck.h

@@ -37,6 +37,7 @@
 namespace QmlDesigner {
 
 enum FoundLicense {
+    noLicense,
     community,
     professional,
     enterprise
@@ -58,9 +59,25 @@ ExtensionSystem::IPlugin *licenseCheckerPlugin()
 
 FoundLicense checkLicense()
 {
+    static FoundLicense license = noLicense;
+
+    if (license != noLicense)
+        return license;
+
     if (auto plugin = Internal::licenseCheckerPlugin()) {
         bool retVal = false;
+
         bool success = QMetaObject::invokeMethod(plugin,
+                                                 "evaluationLicense",
+                                                 Qt::DirectConnection,
+                                                 Q_RETURN_ARG(bool, retVal));
+
+        if (success && retVal)
+            return enterprise;
+
+        retVal = false;
+
+        success = QMetaObject::invokeMethod(plugin,
                                             "qdsEnterpriseLicense",
                                             Qt::DirectConnection,
                                             Q_RETURN_ARG(bool, retVal));