make it clear that this is specifically about bindings

Author: Rich-Harris

packages/svelte/src/compiler/phases/3-transform/client/visitors/shared/component.js

@@ -194,7 +194,7 @@ export function build_component(node, component_name, context, anchor = context.
 
 				if (is_store_sub) {
 					push_prop(
-						b.get(attribute.name, [b.stmt(b.call('$.mark_store_sub')), b.return(expression)])
+						b.get(attribute.name, [b.stmt(b.call('$.mark_store_binding')), b.return(expression)])
 					);
 				} else {
 					push_prop(b.get(attribute.name, [b.return(expression)]));

packages/svelte/src/internal/client/index.js

@@ -122,7 +122,7 @@ export {
 	store_unsub,
 	update_pre_store,
 	update_store,
-	mark_store_sub
+	mark_store_binding
 } from './reactivity/store.js';
 export { set_text } from './render.js';
 export {

packages/svelte/src/internal/client/reactivity/store.js

@@ -157,7 +157,7 @@ export function update_pre_store(store, store_value, d = 1) {
 /**
  * Called inside prop getters to communicate that the prop is a store binding
  */
-export function mark_store_sub() {
+export function mark_store_binding() {
 	marked_store_sub = true;
 }