Add pb.Provider.ToProviderInfo test helper method (#2805)

This PR adds a `ToProviderInfo` test helper method to the
`providerbuilder` test class. `providerbuilder` is the blessed way to
build PF providers and we have various repeated code for turning this
into a bridged provider `ProviderInfo`. The new method aims to
consolidate them. This should also help with discoverability.

pkg/pf/internal/providerbuilder/build_provider.go

@@ -24,6 +24,10 @@ import (
 	"github.com/hashicorp/terraform-plugin-framework/resource"
 	"github.com/hashicorp/terraform-plugin-framework/tfsdk"
 	"github.com/hashicorp/terraform-plugin-go/tfprotov6"
+
+	"github.com/pulumi/pulumi-terraform-bridge/v3/pkg/pf/tfbridge"
+	tfbridge0 "github.com/pulumi/pulumi-terraform-bridge/v3/pkg/tfbridge"
+	"github.com/pulumi/pulumi-terraform-bridge/v3/pkg/tfbridge/tokens"
 )
 
 // Provider is a test provider that can be used in tests.
@@ -81,6 +85,22 @@ func (impl *Provider) GRPCProvider() tfprotov6.ProviderServer {
 	return providerserver.NewProtocol6(impl)()
 }
 
+func (impl *Provider) ToProviderInfo() tfbridge0.ProviderInfo {
+	shimProvider := tfbridge.ShimProvider(impl)
+
+	provider := tfbridge0.ProviderInfo{
+		P:                           shimProvider,
+		Name:                        impl.TypeName,
+		Version:                     "0.0.1",
+		MetadataInfo:                &tfbridge0.MetadataInfo{},
+		EnableAccurateBridgePreview: true,
+	}
+
+	provider.MustComputeTokens(tokens.SingleModule(impl.TypeName, "index", tokens.MakeStandard(impl.TypeName)))
+
+	return provider
+}
+
 type NewProviderArgs struct {
 	TypeName       string
 	Version        string