fix: Build documentation at compilation

Some documentation was broken. I refactored it to be declarative now the
project build correctly and produce XML documentation.

WhiteMagic/MarshalCache.cs

@@ -6,8 +6,8 @@ namespace WhiteMagic;
 
 /// <summary>
 /// Caches the widths marshalling decisions for type <typeparamref name="T"/>
-/// once, at static-constructor time. <see cref="MemoryBase.Read{T}"/> and
-/// <see cref="MemoryBase.Write{T}"/> branch on <see cref="TypeRequiresMarshal"/>
+/// once, at static-constructor time. <see cref="MemoryBase.Read{T}(nint, bool)"/> and
+/// <see cref="MemoryBase.Write{T}(nint, T, bool)"/> branch on <see cref="TypeRequiresMarshal"/>
 /// and pick the appropriate width from this cache.
 /// </summary>
 /// <typeparam name="T">The type to cache metadata for.</typeparam>
@@ -24,8 +24,8 @@ public static class MarshalCache<T>
     public static readonly int Size;
 
     /// <summary>
-    /// The unmanaged (interop) width via <see cref="Marshal.SizeOf"/>. The marshal
-    /// path (<see cref="Marshal.PtrToStructure"/>/<see cref="Marshal.StructureToPtr"/>)
+    /// The unmanaged (interop) width via <see cref="Marshal.SizeOf(System.Type)"/>. The marshal
+    /// path (<see cref="Marshal.PtrToStructure(nint, System.Type)"/>/<see cref="Marshal.StructureToPtr"/>)
     /// reads/writes this many bytes. Exceeds <see cref="Size"/> whenever a struct
     /// carries inline unmanaged data that the marshaler expands — inline
     /// <c>ByValTStr</c>/<c>ByValArray</c> buffers, <c>bool</c> fields (4 bytes per
@@ -46,7 +46,7 @@ public static class MarshalCache<T>
     /// <summary>
     /// <see langword="true"/> when <typeparamref name="T"/> cannot be copied through
     /// the blittable <see cref="System.Runtime.InteropServices.MemoryMarshal"/> path
-    /// and must fall back to <see cref="Marshal.PtrToStructure"/> /
+    /// and must fall back to <see cref="Marshal.PtrToStructure(nint, System.Type)"/> /
     /// <see cref="Marshal.StructureToPtr"/>. This is the case when a top-level field
     /// carries <see cref="MarshalAsAttribute"/>, or when <typeparamref name="T"/>
     /// contains a managed reference