Names -> Keywords batch 6

[WhiteBlackGoose]

Replacing full type names with keywords when appropriate

Files affected: source.cs, source.cs, source.cs, source.cs, source.cs, source.cs, source.cs, source.cs, source.cs, source.cs, source.cs, source.cs, source.cs, source.cs, source.cs, source.cs, source.cs, source.cs, action.cs, Action3.cs, Anon.cs, Delegate.cs, Lambda.cs, Action4.cs.

See #6920

[ghost]

I couldn't figure out the best area label to add to this PR. If you have write-permissions please help me learn by adding exactly one area label.

[opbld32]

Docs Build status updates of commit 0efc94f:

✅ Validation status: passed

File	Status	Preview URL	Details
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic SortedList.Contains Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic SortedList.CopyTo Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic SortedList.IndexOfKey Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic Stack.CopyTo Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic String.Substring1 Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic TextWriterTraceListener.Close Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic ThreadExceptionEventArgs Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic Trace.Fail1 Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic Trace.Write2 Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic Trace.Write3 Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic Trace.WriteIf2 Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic Trace.WriteIf3 Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic Trace.WriteLine2 Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic Trace.WriteLine3 Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic Trace.WriteLineIf2 Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic Trace.WriteLineIf3 Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic TripleDESCryptoServiceProvider Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_Classic/classic WindowsPrincipal.Identity Example/CS/source.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_System/system.Action_PrintExample/cs/action.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_System/system.Action~3/cs/Action3.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_System/system.Action~3/cs/Anon.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_System/system.Action~3/cs/Delegate.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_System/system.Action~3/cs/Lambda.cs	✅Succeeded	View
samples/snippets/csharp/VS_Snippets_CLR_System/system.Action~4/cs/Action4.cs	✅Succeeded	View

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Note: Broken links written as relative paths are included in the above build report. For broken links written as absolute paths or external URLs, see the broken link report.

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[BillWagner]

LGTM