Add code comment to make in-progress migration from Ui to View more obvious (#37492)

internal/command/meta.go

@@ -72,11 +72,18 @@ type Meta struct {
 	// do some default behavior instead if so, rather than panicking.
 	Streams *terminal.Streams
 
-	View *views.View
+	// View is the newer abstraction used for output from Terraform operations.
+	// View allows output to be rendered differently, depending on CLI settings.
+	// Currently the only non-default option is machine-readable output using  the`-json` flag.
+	// We are slowly migrating Terraform operations away from using `cli.Ui` and towards
+	// using `views.View`, and so far only the commands with machine-readable output features are
+	// migrated.
+	// For more information see: https://github.com/hashicorp/terraform/issues/37439
+	View *views.View // View for output
 
 	Color            bool     // True if output should be colored
 	GlobalPluginDirs []string // Additional paths to search for plugins
-	Ui               cli.Ui   // Ui for output
+	Ui               cli.Ui   // Ui for output. See View above.
 
 	// Services provides access to remote endpoint information for
 	// "terraform-native' services running at a specific user-facing hostname.