Fix analyzer failure where incorrect SemanticModel is used (#91764)

Fixes #90356

Author: davidwrighton

src/coreclr/System.Private.CoreLib/System.Private.CoreLib.csproj

@@ -46,8 +46,7 @@
     <!-- Override InformationalVersion during servicing as it's returned via public api. -->
     <InformationalVersion Condition="'$(PreReleaseVersionLabel)' == 'servicing'">$(ProductVersion)</InformationalVersion>
     <InformationalVersion Condition="'$(StabilizePackageVersion)' == 'true'">$(ProductVersion)</InformationalVersion>
-    <!-- AD0001 : https://github.com/dotnet/runtime/issues/90356 -->
-    <NoWarn>$(NoWarn),0419,0649;AD0001</NoWarn>
+    <NoWarn>$(NoWarn),0419,0649</NoWarn>
     <Nullable>enable</Nullable>
 
     <!-- Ignore all previous constants since SPCL is sensitive to what is defined and the Sdk adds some by default -->

src/libraries/System.Private.CoreLib/gen/IntrinsicsInSystemPrivateCoreLibAnalyzer.cs

@@ -293,6 +293,12 @@ private static INamedTypeSymbol[][] DecomposePropertySymbolForIsSupportedGroups_
                 if (propertyDefiningSyntax is PropertyDeclarationSyntax propertyDeclaration
                     && propertyDeclaration.ExpressionBody is ArrowExpressionClauseSyntax arrowExpression)
                 {
+                    if (model.SyntaxTree != arrowExpression.SyntaxTree)
+                    {
+#pragma warning disable RS1030
+                        model = model.Compilation.GetSemanticModel(arrowExpression.SyntaxTree);
+#pragma warning restore RS1030
+                    }
                     return DecomposeConditionForIsSupportedGroups(context, model, arrowExpression.Expression);
                 }
             }