Test for GetNamespaceDefinition crash

Author: jkotas

src/System.Reflection.Metadata/tests/Resources/Namespace/NamespaceTests.cs

@@ -131,6 +131,19 @@ public class Namespace
     { }
 }
 
+// Same suffix shared by different namespaces
+namespace FxResources.Microsoft.CSharp
+{
+    public class Resources
+    { }
+}
+
+namespace Microsoft.CSharp
+{
+    public class Program
+    { }
+}
+
 // EXCEPTION: Forwarder namespace has a type forwarder: Forwarder.FwdType. This can be found in NamespaceForwardedCS.cs.
 namespace Forwarder
 {

src/System.Reflection.Metadata/tests/Resources/Namespace/NamespaceTests.dll

@@ -2,4 +2,4 @@
 tf edit NamespaceForwardedCS.dll
 csc /target:library NamespaceForwardedCS.cs
 tf edit NamespaceTests.dll
-csc /r:NamespaceForwardedCS.dll /target:library /out:NamespaceTests.dll NamespaceTestingCS.cs
+csc /r:NamespaceForwardedCS.dll /target:library /out:NamespaceTests.dll NamespaceTests.cs