Comments in NativeMethods.txt

[CBenghi]

It would be helpful to add comments to the NativeMethods.txt file to make the list of lines more expressive.

For example, something like:

// GetLastInputInfo is used to determine if the user is idle in module xxx
GetLastInputInfo
// todo: remove SetWindowsHookEx and use class yyy instead
SetWindowsHookEx

Having read the code

CsWin32/src/Microsoft.Windows.CsWin32/SourceGenerator.cs

Lines 116 to 123 in d2f2d7f

	foreach (TextLine line in nativeMethodsTxt.Lines)
	{
	context.CancellationToken.ThrowIfCancellationRequested();
	string name = line.ToString();
	if (string.IsNullOrWhiteSpace(name))
	{
	continue;
	}

this seems easy... I'll post a PR shortly.