C#: Add manual models for StringWriter.

Author: michaelnebel

csharp/ql/lib/ext/System.IO.model.yml

@@ -112,6 +112,19 @@ extensions:
       - ["System.IO", "StreamReader", False, "StreamReader", "(System.String,System.Text.Encoding,System.Boolean,System.IO.FileStreamOptions)", "", "Argument[0]", "Argument[this]", "taint", "manual"]
       - ["System.IO", "StreamReader", False, "StreamReader", "(System.String,System.Text.Encoding,System.Boolean,System.Int32)", "", "Argument[0]", "Argument[this]", "taint", "manual"]
       - ["System.IO", "StringReader", False, "StringReader", "(System.String)", "", "Argument[0]", "Argument[this]", "taint", "manual"]
+      - ["System.IO", "StringWriter", True, "GetStringBuilder", "()", "", "Argument[this]", "ReturnValue", "taint", "manual"]
+      - ["System.IO", "StringWriter", False, "StringWriter", "(System.Text.StringBuilder,System.IFormatProvider)", "", "Argument[0]", "Argument[this]", "taint", "manual"]
+      - ["System.IO", "StringWriter", False, "ToString", "()", "", "Argument[this]", "ReturnValue", "taint", "manual"]
+      - ["System.IO", "StringWriter", True, "Write", "(System.Char[],System.Int32,System.Int32)", "", "Argument[0].Element", "Argument[this]", "taint", "manual"]
+      - ["System.IO", "StringWriter", True, "Write", "(System.String)", "", "Argument[0]", "Argument[this]", "taint", "manual"]
+      - ["System.IO", "StringWriter", True, "Write", "(System.Text.StringBuilder)", "", "Argument[0]", "Argument[this]", "taint", "manual"]
+      - ["System.IO", "StringWriter", True, "WriteAsync", "(System.Char[],System.Int32,System.Int32)", "", "Argument[0].Element", "Argument[this]", "taint", "manual"]
+      - ["System.IO", "StringWriter", True, "WriteAsync", "(System.String)", "", "Argument[0]", "Argument[this]", "taint", "manual"]
+      - ["System.IO", "StringWriter", True, "WriteAsync", "(System.Text.StringBuilder,System.Threading.CancellationToken)", "", "Argument[0]", "Argument[this]", "taint", "manual"]
+      - ["System.IO", "StringWriter", True, "WriteLine", "(System.Text.StringBuilder)", "", "Argument[0]", "Argument[this]", "taint", "manual"]
+      - ["System.IO", "StringWriter", True, "WriteLineAsync", "(System.Char[],System.Int32,System.Int32)", "", "Argument[0].Element", "Argument[this]", "taint", "manual"]
+      - ["System.IO", "StringWriter", True, "WriteLineAsync", "(System.String)", "", "Argument[0]", "Argument[this]", "taint", "manual"]
+      - ["System.IO", "StringWriter", True, "WriteLineAsync", "(System.Text.StringBuilder,System.Threading.CancellationToken)", "", "Argument[0]", "Argument[this]", "taint", "manual"]
       - ["System.IO", "TextReader", True, "Read", "()", "", "Argument[this]", "ReturnValue", "taint", "manual"]
       - ["System.IO", "TextReader", True, "Read", "(System.Char[],System.Int32,System.Int32)", "", "Argument[this]", "Argument[0].Element", "taint", "manual"]
       - ["System.IO", "TextReader", True, "Read", "(System.Span<System.Char>)", "", "Argument[this]", "Argument[0].Element", "taint", "manual"]