Stop generating Date class for C#

[tjpalmer]

We're building a std Date class for C#:

temper.out\csharp\std\src\Temporal\Date.cs

It also causes some warnings from the C# compiler:

C:\Users\work2\Documents\projects\snippets\temper.out\csharp\std\src\Temporal\Date.cs(6,22): warning CS0649: Field 'Date.month__35' is never assigned to, a
nd will always have its default value 0 [C:\Users\work2\Documents\projects\snippets\temper.out\csharp\std\src\TemperLang.Std.csproj]
C:\Users\work2\Documents\projects\snippets\temper.out\csharp\std\src\Temporal\Date.cs(7,22): warning CS0649: Field 'Date.day__36' is never assigned to, and
 will always have its default value 0 [C:\Users\work2\Documents\projects\snippets\temper.out\csharp\std\src\TemperLang.Std.csproj]
C:\Users\work2\Documents\projects\snippets\temper.out\csharp\std\src\Temporal\Date.cs(5,22): warning CS0649: Field 'Date.year__34' is never assigned to, an
d will always have its default value 0 [C:\Users\work2\Documents\projects\snippets\temper.out\csharp\std\src\TemperLang.Std.csproj]

But I don't see the class generated for other backends, so there's probably some way to avoid it.

[tjpalmer]

In TmpLTranslator, the Date type definition has all these in be-csharp:

_members = {ArrayList@6631}  size = 6
 0 = {TmpL$InstanceProperty@6638} @docString(["The year.  1900 means 1900.", "The year.  1900 means 1900.", "std//temporal.temper.md"]) let year__34: Int;
 1 = {TmpL$InstanceProperty@6639} @docString(["The month of the year in [1, 12].", "The month of the year in [1, 12].", "std//temporal.temper.md"]) let month__35: Int;
 2 = {TmpL$InstanceProperty@6640} @docString(["The day of the month in [1, 31]\nadditionally constrained by the length of [month].", "The day of the month in [1, 31]\nadditionally constrained by the length of [month].", "std//temporal.temper.md"]) let day__36: Int;
 3 = {TmpL$Getter@6641} get.year -> getyear__53(this = this__54, this__54: System.DateTime): Int {return /* this */ this__54.year__34;}
 4 = {TmpL$Getter@6642} get.month -> getmonth__57(this = this__58, this__58: System.DateTime): Int {return /* this */ this__58.month__35;}
 5 = {TmpL$Getter@6643} get.day -> getday__61(this = this__62, this__62: System.DateTime): Int {return /* this */ this__62.day__36;}

But it only has the instance properties in be-py.

I have no idea yet why it would be different between the two.

[tjpalmer]

I think it's because I don't connect the getters. And I don't because default rendering is fine for C#. But then it's confusing the part that figures out if the definitions of those getters is needed. I guess I'll connect them to simple member getters after all.

[tjpalmer]

Completed in a recent PR.