Imported Upstream version 4.2.1.36

Former-commit-id: f3008ca867fe7e4b7ae9b9a8844c0ad5798925a9

mcs/errors/cs0165-53.cs

@@ -0,0 +1,21 @@
+// CS0165: Use of unassigned local variable `v'
+// Line: 19
+
+using System;
+
+class X
+{
+	void Foo (out int value)
+	{
+		value = 1;
+	}
+
+	public static void Main ()
+	{
+		int v;
+		X[] x = null;
+
+		x?[0].Foo (out v);
+		Console.WriteLine (v);
+	}
+}

mcs/errors/cs0165-54.cs

@@ -0,0 +1,25 @@
+// CS0165: Use of unassigned local variable `res'
+// Line: 23
+
+class A
+{
+	public B b;
+}
+
+class B
+{
+	public void Foo (int arg)
+	{
+	}
+}
+
+class X
+{
+	public static void Main ()
+	{
+		A a = null;
+		int res;
+		a?.b.Foo(res = 3);
+		System.Console.WriteLine (res);
+	}
+}

mcs/errors/cs0165-55.cs

@@ -0,0 +1,14 @@
+// CS0165: Use of unassigned local variable `res'
+// Line: 11
+
+class X
+{
+	public static int Main ()
+	{
+		string[] a = null;
+		int res;
+		var m = a?[res = 3];
+		System.Console.WriteLine (res);
+		return 0;
+	}
+}

mcs/errors/cs0176-8.cs

@@ -0,0 +1,11 @@
+// CS0176: Static member `string.Empty' cannot be accessed with an instance reference, qualify it with a type name instead
+// Line: 9
+
+class X
+{
+	public static void Main ()
+	{
+		string y = null;
+		var x = y?.Empty;
+	}
+}

mcs/errors/cs1503-18.cs

@@ -0,0 +1,13 @@
+// CS1503: Argument `#1' cannot convert `int?' expression to type `int'
+// Line: 11
+
+class X
+{
+	public static void Main ()
+	{
+		string x = null;
+		string y = null;
+
+		var res = x?[y?.Length];
+	}
+}