chore: create binding.updated getter (#15362)

Author: Rich-Harris

packages/svelte/src/compiler/phases/2-analyze/index.js

@@ -565,7 +565,7 @@ export function analyze_component(root, source, options) {
 										binding.declaration_kind !== 'import'
 									) {
 										binding.kind = 'state';
-										binding.mutated = binding.updated = true;
+										binding.mutated = true;
 									}
 								}
 							}

packages/svelte/src/compiler/phases/2-analyze/visitors/ExportSpecifier.js

@@ -22,7 +22,7 @@ export function ExportSpecifier(node, context) {
 			});
 
 			const binding = context.state.scope.get(local_name);
-			if (binding) binding.reassigned = binding.updated = true;
+			if (binding) binding.reassigned = true;
 		}
 	} else {
 		validate_export(node, context.state.scope, local_name);

packages/svelte/src/compiler/phases/scope.js

@@ -60,7 +60,6 @@ export class Binding {
 	is_called = false;
 	mutated = false;
 	reassigned = false;
-	updated = false;
 
 	/**
 	 *
@@ -77,6 +76,10 @@ export class Binding {
 		this.kind = kind;
 		this.declaration_kind = declaration_kind;
 	}
+
+	get updated() {
+		return this.mutated || this.reassigned;
+	}
 }
 
 export class Scope {
@@ -738,8 +741,6 @@ export function create_scopes(ast, root, allow_reactive_declarations, parent) {
 			const binding = left && scope.get(left.name);
 
 			if (binding !== null && left !== binding.node) {
-				binding.updated = true;
-
 				if (left === expression) {
 					binding.reassigned = true;
 				} else {