Disambiguate Runtime-provided from Roslyn-provided helpers

src/libraries/Common/src/Roslyn/GetBestTypeByMetadataName.cs

@@ -3,7 +3,7 @@
 
 using Microsoft.CodeAnalysis;
 
-namespace Microsoft.CodeAnalysis.Shared.Extensions
+namespace Microsoft.CodeAnalysis.DotnetRuntime.Extensions
 {
     internal static class RoslynExtensions
     {

src/libraries/Microsoft.Extensions.Logging.Abstractions/gen/LoggerMessageGenerator.Parser.cs

@@ -10,7 +10,7 @@
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
-using Microsoft.CodeAnalysis.Shared.Extensions;
+using Microsoft.CodeAnalysis.DotnetRuntime.Extensions;
 
 namespace Microsoft.Extensions.Logging.Generators
 {

src/libraries/System.Private.CoreLib/generators/EventSourceGenerator.Parser.cs

@@ -10,7 +10,7 @@
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
-using Microsoft.CodeAnalysis.Shared.Extensions;
+using Microsoft.CodeAnalysis.DotnetRuntime.Extensions;
 
 namespace Generators
 {

src/libraries/System.Text.Json/gen/JsonSourceGenerator.Parser.cs

@@ -14,7 +14,7 @@
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
-using Microsoft.CodeAnalysis.Shared.Extensions;
+using Microsoft.CodeAnalysis.DotnetRuntime.Extensions;
 using Microsoft.CodeAnalysis.Text;
 
 namespace System.Text.Json.SourceGeneration

src/libraries/System.Text.Json/gen/Reflection/MetadataLoadContextInternal.cs

@@ -7,7 +7,7 @@
 using System.Reflection;
 using System.Runtime.CompilerServices;
 using Microsoft.CodeAnalysis;
-using Microsoft.CodeAnalysis.Shared.Extensions;
+using Microsoft.CodeAnalysis.DotnetRuntime.Extensions;
 
 namespace System.Text.Json.Reflection
 {