Verify 30754 is fixed

closes #30754

src/Compilers/Test/Utilities/CSharp/CSharpTestBase.cs

@@ -2032,6 +2032,22 @@ protected static CSharpCompilation CreateCompilationWithIndexAndRangeAndSpan(CSh
         }
         #endregion
 
+        #region Theory Helpers
+
+        public static IEnumerable<object[]> NonNullTypesTrueAndFalse
+        {
+            get
+            {
+                return new List<object[]>()
+                {
+                    new object[] { WithNonNullTypesTrue() },
+                    new object[] { WithNonNullTypesFalse() }
+                };
+            }
+        }
+        #endregion
+
+
         protected static readonly string s_IAsyncEnumerable = @"
 namespace System.Collections.Generic
 {

src/ExpressionEvaluator/CSharp/Test/ExpressionCompiler/ReferencedModulesTests.cs

@@ -1367,8 +1367,9 @@ .maxstack  1
 
         // References to missing assembly from PDB custom debug info.
         [WorkItem(13275, "https://github.com/dotnet/roslyn/issues/13275")]
-        [Fact]
-        public void CorLibWithAssemblyReferences_Pdb()
+        [Theory]
+        [MemberData(nameof(NonNullTypesTrueAndFalse))]
+        public void CorLibWithAssemblyReferences_Pdb(CSharpCompilationOptions options)
         {
             string sourceLib =
 @"namespace Namespace
@@ -1397,7 +1398,7 @@ public class Void : Object { }
 }";
             // Create a custom corlib with a reference to compilation
             // above and a reference to the actual mscorlib.
-            var compCorLib = CreateEmptyCompilation(sourceCorLib, assemblyName: CorLibAssemblyName, references: new[] { MscorlibRef, refLib });
+            var compCorLib = CreateEmptyCompilation(sourceCorLib, assemblyName: CorLibAssemblyName, references: new[] { MscorlibRef, refLib }, options: options);
             compCorLib.VerifyDiagnostics();
             var objectType = compCorLib.SourceAssembly.GlobalNamespace.GetMember<NamedTypeSymbol>("System.Object");
             Assert.NotNull(objectType.BaseType());