filter_warning -> warning_filter, for symmetry with public option

Author: Rich-Harris

packages/svelte/src/compiler/state.js

@@ -23,7 +23,7 @@ export let source;
 export let locator = getLocator('', { offsetLine: 1 });
 
 /** @type {NonNullable<CompileOptions['warningFilter']>} */
-export let filter_warning;
+export let warning_filter;
 
 /**
  * The current stack of ignored warnings
@@ -70,7 +70,7 @@ export function reset(_source, options) {
 	}
 
 	locator = getLocator(source, { offsetLine: 1 });
-	filter_warning = options.warningFilter ?? (() => true);
+	warning_filter = options.warningFilter ?? (() => true);
 	warnings = [];
 	ignore_stack = [];
 	ignore_map.clear();

packages/svelte/src/compiler/warnings.js

@@ -4,7 +4,7 @@ import {
 	warnings,
 	ignore_stack,
 	ignore_map,
-	filter_warning
+	warning_filter
 } from './state.js';
 
 import { CompileDiagnostic } from './utils/compile_diagnostic.js';
@@ -39,7 +39,7 @@ function w(node, code, message) {
 
 	const warning = new InternalCompileWarning(code, message, node && node.start !== undefined ? [node.start, node.end ?? node.start] : undefined);
 
-	if (!filter_warning(warning)) return;
+	if (!warning_filter(warning)) return;
 	warnings.push(warning);
 }
 
@@ -744,4 +744,4 @@ export function slot_element_deprecated(node) {
  */
 export function svelte_element_invalid_this(node) {
 	w(node, "svelte_element_invalid_this", "`this` should be an `{expression}`. Using a string attribute value will cause an error in future versions of Svelte");
-}
+}