Don't use the deprecated DefaultInit Array constructors.

src/Magnum/MaterialTools/Copy.cpp

@@ -46,9 +46,9 @@ Trade::MaterialData copy(Trade::MaterialData&& material) {
     if(material.attributeDataFlags() >= (Trade::DataFlag::Mutable|Trade::DataFlag::Owned))
         attributes = material.releaseAttributeData();
     else {
-        /* DefaultInit so we don't use a non-default deleter which could cause
+        /* ValueInit so we don't use a non-default deleter which could cause
            problems in plugins */
-        attributes = Containers::Array<Trade::MaterialAttributeData>{DefaultInit, material.attributeData().size()};
+        attributes = Containers::Array<Trade::MaterialAttributeData>{ValueInit, material.attributeData().size()};
         Utility::copy(material.attributeData(), attributes);
     }
 

src/Magnum/MeshTools/Copy.cpp

@@ -141,9 +141,9 @@ Trade::MeshData copy(Trade::MeshData&& mesh) {
         a default deleter, but would need to pay attention to not copy items
         to themselves and such */
     } else {
-        /* Using DefaultInit so the array has a default deleter and isn't
+        /* Using ValueInit so the array has a default deleter and isn't
            problematic to use in plugins */
-        attributeData = Containers::Array<Trade::MeshAttributeData>{DefaultInit, originalAttributeData.size()};
+        attributeData = Containers::Array<Trade::MeshAttributeData>{ValueInit, originalAttributeData.size()};
         for(std::size_t i = 0; i != originalAttributeData.size(); ++i) {
             const Trade::MeshAttributeData& originalAttribute = originalAttributeData[i];
 

src/Magnum/SceneTools/Copy.cpp

@@ -83,9 +83,9 @@ Trade::SceneData copy(Trade::SceneData&& scene) {
         a default deleter, but would need to pay attention to not copy items
         to themselves and such */
     } else {
-        /* Using DefaultInit so the array has a default deleter and isn't
+        /* Using ValueInit so the array has a default deleter and isn't
            problematic to use in plugins */
-        fieldData = Containers::Array<Trade::SceneFieldData>{DefaultInit, originalFieldData.size()};
+        fieldData = Containers::Array<Trade::SceneFieldData>{ValueInit, originalFieldData.size()};
         for(std::size_t i = 0; i != originalFieldData.size(); ++i) {
             const Trade::SceneFieldData& originalField = originalFieldData[i];
 

src/Magnum/Trade/PhongMaterialData.cpp

@@ -94,7 +94,7 @@ PhongMaterialData::PhongMaterialData(const Flags flags, const Color4& ambientCol
 
     /* Convert back to a non-growable Array as importers don't allow custom
        deleters in plugin implementations */
-    arrayShrink(data, DefaultInit);
+    arrayShrink(data, ValueInit);
     return data;
 }(), importerState} {
     /* The data can't be filled here because it won't be sorted correctly */