Add ProcessStartInfo constructor that accepts IEnumerable<string> arguments

src/libraries/System.Diagnostics.Process/ref/System.Diagnostics.Process.cs

@@ -215,6 +215,7 @@ public sealed partial class ProcessStartInfo
         public ProcessStartInfo() { }
         public ProcessStartInfo(string fileName) { }
         public ProcessStartInfo(string fileName, string arguments) { }
+        public ProcessStartInfo(string fileName, System.Collections.Generic.IEnumerable<string> arguments) { }
         public System.Collections.ObjectModel.Collection<string> ArgumentList { get { throw null; } }
         [System.Diagnostics.CodeAnalysis.AllowNullAttribute]
         public string Arguments { get { throw null; } set { } }

src/libraries/System.Diagnostics.Process/src/System/Diagnostics/Process.cs

@@ -1330,13 +1330,7 @@ public static Process Start(string fileName, IEnumerable<string> arguments)
             ArgumentNullException.ThrowIfNull(fileName);
             ArgumentNullException.ThrowIfNull(arguments);
 
-            var startInfo = new ProcessStartInfo(fileName);
-            foreach (string argument in arguments)
-            {
-                startInfo.ArgumentList.Add(argument);
-            }
-
-            return Start(startInfo)!;
+            return Start(new ProcessStartInfo(fileName, arguments))!;
         }
 
         /// <devdoc>

src/libraries/System.Diagnostics.Process/src/System/Diagnostics/ProcessStartInfo.cs

@@ -55,6 +55,20 @@ public ProcessStartInfo(string fileName, string arguments)
             _arguments = arguments;
         }
 
+        /// <devdoc>
+        ///     Specifies the name of the application that is to be started, as well as a set
+        ///     of command line arguments to pass to the application.
+        /// </devdoc>
+        public ProcessStartInfo(string fileName, IEnumerable<string> arguments)
+        {
+            _fileName = fileName;
+
+            foreach (string argument in arguments)
+            {
+                ArgumentList.Add(argument);
+            }
+        }
+
         /// <devdoc>
         ///     Specifies the set of command line arguments to use when starting the application.
         /// </devdoc>

src/libraries/System.Diagnostics.Process/tests/ProcessStartInfoTests.cs

@@ -1257,15 +1257,37 @@ public void UninitializedArgumentList()
         }
 
         [Fact]
-        public void InitializeWithArgumentList()
+        public void InitializeWithArgumentList_Add()
         {
             ProcessStartInfo psi = new ProcessStartInfo("filename");
             psi.ArgumentList.Add("arg1");
             psi.ArgumentList.Add("arg2");
+            psi.ArgumentList.Add(" arg3");
+            psi.ArgumentList.Add("arg4 ");
+            psi.ArgumentList.Add("arg 5");
+            psi.ArgumentList.Add($"arg{Environment.NewLine}6");
 
-            Assert.Equal(2, psi.ArgumentList.Count);
+            Assert.Equal(6, psi.ArgumentList.Count);
             Assert.Equal("arg1", psi.ArgumentList[0]);
             Assert.Equal("arg2", psi.ArgumentList[1]);
+            Assert.Equal(" arg3", psi.ArgumentList[2]);
+            Assert.Equal("arg4 ", psi.ArgumentList[3]);
+            Assert.Equal("arg 5", psi.ArgumentList[4]);
+            Assert.Equal($"arg{Environment.NewLine}6", psi.ArgumentList[5]);
+        }
+
+        [Fact]
+        public void InitializeWithArgumentList_Enumerable()
+        {
+            ProcessStartInfo psi = new ProcessStartInfo("filename", new[] { "arg1", "arg2", " arg3", "arg4 ", "arg 5", $"arg{Environment.NewLine}6" });
+
+            Assert.Equal(6, psi.ArgumentList.Count);
+            Assert.Equal("arg1", psi.ArgumentList[0]);
+            Assert.Equal("arg2", psi.ArgumentList[1]);
+            Assert.Equal(" arg3", psi.ArgumentList[2]);
+            Assert.Equal("arg4 ", psi.ArgumentList[3]);
+            Assert.Equal("arg 5", psi.ArgumentList[4]);
+            Assert.Equal($"arg{Environment.NewLine}6", psi.ArgumentList[5]);
         }
 
         [ConditionalTheory(typeof(PlatformDetection), nameof(PlatformDetection.IsNotWindowsNanoServer))] // No Notepad on Nano