configuration: resolve apigen.yml config case-insensitively

packages/ModularConfiguration/src/ConfigurationResolver.php

@@ -34,8 +34,14 @@ public function resolveValue(string $name, $value)
      */
     public function resolveValuesWithDefaults(array $values): array
     {
+        $values = array_change_key_case($values, CASE_LOWER);
+
         foreach ($this->getOptionNames() as $name) {
-            $values[$name] = $this->resolveValue($name, $values[$name] ?? null);
+            $lowered = strtolower($name);
+            $values[$name] = $this->resolveValue($name, $values[$lowered] ?? null);
+            if ($name !== $lowered) {
+                unset($values[$lowered]);
+            }
         }
 
         return $values;

packages/Reflection/src/Contract/Reflection/Class_/ClassReflectionInterface.php

@@ -13,7 +13,7 @@
 
 interface ClassReflectionInterface extends StartAndEndLineInterface, AnnotationsInterface, AbstractReflectionInterface, InNamespaceInterface, FileNameAwareReflectionInterface
 {
-    public function getParentClass(): ?ClassReflectionInterface;
+    public function getParentClass(): ?self;
 
     public function getParentClassName(): ?string;
 

packages/Reflection/src/Contract/Reflection/Trait_/TraitMethodReflectionInterface.php

@@ -6,5 +6,5 @@
 
 interface TraitMethodReflectionInterface extends AbstractMethodReflectionInterface, AbstractTraitElementInterface
 {
-    public function getOverriddenMethod(): ?TraitMethodReflectionInterface;
+    public function getOverriddenMethod(): ?self;
 }

src/Configuration/Configuration.php

@@ -49,16 +49,6 @@ public function resolveOptions(array $options): array
 
         $resolvedOptions = $this->configurationResolver->resolveValuesWithDefaults($options);
 
-        // hack to remove duplicated lowercased value
-        unset($resolvedOptions[strtolower(VisibilityLevelOption::NAME)]);
-
-        $baseUrlKeyLowered = strtolower(BaseUrlOption::NAME);
-        if (isset($resolvedOptions[$baseUrlKeyLowered])) {
-            $resolvedOptions[BaseUrlOption::NAME] = $resolvedOptions[$baseUrlKeyLowered];
-        }
-
-        unset($resolvedOptions[$baseUrlKeyLowered]);
-
         return $this->options = $resolvedOptions;
     }