fix cache context for Twig namespaces extension

Author: Haehnchen

src/main/java/fr/adrienbrault/idea/symfony2plugin/templating/path/ConfigAddPathTwigNamespaces.java

@@ -14,6 +14,7 @@
 import fr.adrienbrault.idea.symfony2plugin.extension.TwigNamespaceExtension;
 import fr.adrienbrault.idea.symfony2plugin.extension.TwigNamespaceExtensionParameter;
 import fr.adrienbrault.idea.symfony2plugin.templating.util.TwigUtil;
+import fr.adrienbrault.idea.symfony2plugin.util.PsiElementUtils;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.yaml.psi.YAMLFile;
 
@@ -42,21 +43,22 @@ public Collection<TwigPath> getNamespaces(@NotNull TwigNamespaceExtensionParamet
         return CachedValuesManager.getManager(project).getCachedValue(
             project,
             CACHE,
-            () -> CachedValueProvider.Result.create(getTwigPaths(parameter), PsiModificationTracker.MODIFICATION_COUNT),
+            () -> CachedValueProvider.Result.create(getTwigPaths(project), PsiModificationTracker.MODIFICATION_COUNT),
             false
         );
     }
 
     @NotNull
-    private static Collection<TwigPath> getTwigPaths(@NotNull TwigNamespaceExtensionParameter parameter) {
+    private static Collection<TwigPath> getTwigPaths(@NotNull Project project) {
         Collection<TwigPath> twigPaths = new ArrayList<>();
 
-        for (VirtualFile file : ConfigUtil.getConfigurations(parameter.getProject(), "twig")) {
-            PsiFile psiFile = PsiManager.getInstance(parameter.getProject()).findFile(file);
-            if(!(psiFile instanceof YAMLFile)) {
-                continue;
-            }
+        // file config files a eg ".../app/..." or "../packages/..."
+        Collection<PsiFile> psiFiles = PsiElementUtils.convertVirtualFilesToPsiFiles(
+            project,
+            ConfigUtil.getConfigurations(project, "twig")
+        );
 
+        for (PsiFile psiFile : psiFiles) {
             for (Pair<String, String> stringStringPair : TwigUtil.getTwigPathFromYamlConfigResolved((YAMLFile) psiFile)) {
                 // default path
                 String first = stringStringPair.getFirst();