Tighten configure cross-tests

As part of diagnosing #2530, this
commit tightens `crosstests.Configure`. My assumption is that we will occasionally see
failures in the bridged provider here.

pkg/internal/tests/cross-tests/configure.go

@@ -82,6 +82,9 @@ func Configure(
 		return &schema.Provider{
 			Schema: provider,
 			ConfigureContextFunc: func(_ context.Context, rd *schema.ResourceData) (any, diag.Diagnostics) {
+				if rd == nil {
+					return nil, diag.Errorf("Attempted to configure the provider with nil %T", rd)
+				}
 				*writeTo = result{rd, true, false}
 
 				return configureResult, nil
@@ -114,7 +117,7 @@ func Configure(
 	require.NoError(t, tfd.Apply(t, plan))
 
 	require.True(t, tfResult.wasSet, "terraform configure result was not set")
-	require.True(t, tfResult.wasSet, "terraform resource result was not set")
+	require.True(t, tfResult.resourceCreated, "terraform resource result was not set")
 
 	bridgedProvider := pulcheck.BridgedProvider(
 		t, defProviderShortName, makeProvider(&puResult),
@@ -142,7 +145,7 @@ func Configure(
 	pt.Up(t)
 
 	require.True(t, tfResult.wasSet, "pulumi configure result was not set")
-	require.True(t, tfResult.wasSet, "pulumi resource result was not set")
+	require.True(t, tfResult.resourceCreated, "pulumi resource result was not set")
 
 	assertResourceDataEqual(t, provider, tfResult.data, puResult.data)
 }