Fix provider name discrepancy in index doc (#2562)

This pull request swaps out use of `g.info.Name` for
`g.pkg.Name().String()` when determining the name of the provider for
title and download link purposes.
`g.info.Name` refers to the upstream Terraform provider name. We need to
use the Pulumi package name instead.
Fortunately the bridge already knows how to do this, so this pull
request swaps out the package name getter and adjusts the parser test
provider to have a pkg name.

Fixes pulumi/pulumi-f5bigip#598.
PR in that provider with these changes:
pulumi/pulumi-f5bigip#601

pkg/tfgen/installation_docs.go

@@ -35,7 +35,7 @@ func plainDocsParser(docFile *DocFile, g *Generator) ([]byte, error) {
 
 	// Add pulumi-specific front matter
 	// Generate pulumi-specific front matter
-	frontMatter := writeFrontMatter(g.info.Name)
+	frontMatter := writeFrontMatter(g.pkg.Name().String())
 
 	// Remove the title. A title gets populated from Hugo frontmatter; we do not want two.
 	content, err = removeTitle(content)
@@ -47,7 +47,7 @@ func plainDocsParser(docFile *DocFile, g *Generator) ([]byte, error) {
 	content = stripSchemaGeneratedByTFPluginDocs(content)
 
 	// Generate pulumi-specific installation instructions
-	installationInstructions := writeInstallationInstructions(g.info.Golang.ImportBasePath, g.info.Name)
+	installationInstructions := writeInstallationInstructions(g.info.Golang.ImportBasePath, g.pkg.Name().String())
 
 	// Determine if we should write an overview header.
 	overviewHeader := getOverviewHeader(content)

pkg/tfgen/installation_docs_test.go

@@ -13,6 +13,7 @@ import (
 
 	"github.com/pulumi/pulumi-terraform-bridge/v3/pkg/tfbridge"
 	sdkv2 "github.com/pulumi/pulumi-terraform-bridge/v3/pkg/tfshim/sdk-v2"
+	"github.com/pulumi/pulumi/sdk/v3/go/common/tokens"
 )
 
 func TestPlainDocsParser(t *testing.T) {
@@ -91,14 +92,14 @@ func TestPlainDocsParser(t *testing.T) {
 					Golang: &tfbridge.GolangInfo{
 						ImportBasePath: "github.com/pulumi/pulumi-libvirt/sdk/go/libvirt",
 					},
-					Name: "libvirt",
 				},
 				cliConverterState: &cliConverter{
 					info: p,
 					pcls: pclsMap,
 				},
 				editRules: tt.edits,
 				language:  RegistryDocs,
+				pkg:       tokens.NewPackageToken("libvirt"),
 			}
 			actual, err := plainDocsParser(&tt.docFile, g)
 			require.NoError(t, err)