Trade: minor.

src/Magnum/Trade/MeshData.cpp

@@ -243,7 +243,7 @@ Containers::StridedArrayView2D<char> MeshData::mutableIndices() {
     CORRADE_ASSERT(isIndexed(),
         "Trade::MeshData::mutableIndices(): the mesh is not indexed", {});
     const std::size_t indexTypeSize = meshIndexTypeSize(_indexType);
-    /* Build a 2D view using information about attribute type size */
+    /* Build a 2D view using information about index type size */
     Containers::StridedArrayView2D<const char> out{{_indices, _indexCount*indexTypeSize}, {_indexCount, indexTypeSize}};
     /** @todo some arrayConstCast? UGH */
     return Containers::StridedArrayView2D<char>{

src/Magnum/Trade/Test/MeshDataTest.cpp

@@ -166,7 +166,7 @@ struct MeshDataTest: TestSuite::Tester {
     void releaseVertexData();
 };
 
-struct {
+const struct {
     const char* name;
     UnsignedInt vertexCount, expectedVertexCount;
 } ConstructData[] {
@@ -176,7 +176,7 @@ struct {
     {"explicit zero vertex count", 0, 0}
 };
 
-struct {
+const struct {
     const char* name;
     DataFlags indexDataFlags, vertexDataFlags;
 } NotOwnedData[] {
@@ -186,7 +186,7 @@ struct {
     {"both mutable", DataFlag::Mutable, DataFlag::Mutable}
 };
 
-struct {
+const struct {
     const char* name;
     DataFlags dataFlags;
 } SingleNotOwnedData[] {