update the spec for the deprecation of feature-exists (#3860)

js-api-doc/deprecations.d.ts

@@ -6,7 +6,7 @@
  */
 export interface Deprecations {
   // START AUTOGENERATED LIST
-  // Checksum: 309e4f1f008f08379b824ab6094e13df2e18e187
+  // Checksum: dd5c6aa0f1431fa9fc88bb71a96f832adbc165f5
 
   /**
    * Deprecation for passing a string directly to meta.call().
@@ -120,6 +120,13 @@ export interface Deprecations {
    */
   'mixed-decls': Deprecation<'mixed-decls'>;
 
+  /**
+   * Deprecation for meta.feature-exists
+   *
+   * This deprecation became active in Dart Sass 1.78.0.
+   */
+  'feature-exists': Deprecation<'feature-exists'>;
+
   /**
    * Deprecation for @import rules.
    *

spec/built-in-modules/meta.md

@@ -106,6 +106,8 @@ function-exists($name, $module: null)
 
 This function is also available as a global function named `function-exists()`.
 
+* Emit a deprecation warning named `feature-exists`.
+
 * If `$name` is not a string, throw an error.
 
 * If `$name` is not an [`<ident-token>`], return false.
@@ -115,7 +117,7 @@ This function is also available as a global function named `function-exists()`.
 * If `$module` is null:
 
   * Return whether [resolving a function] named `$name` returns null.
-  
+
   [resolving a function]: ../modules.md#resolving-a-member
 
 * Otherwise, if `$module` isn't a string, throw an error.
@@ -213,7 +215,7 @@ This function is also available as a global function named `global-variable-exis
 
   * Return whether [resolving a variable] named `$name`, ignoring local
     scopes, returns null.
-  
+
   [resolving a variable]: ../modules.md#resolving-a-member
 
 * Otherwise, if `$module` isn't a string, throw an error.

spec/deprecations.yaml

@@ -112,6 +112,12 @@ mixed-decls:
     status: active
     deprecated: 1.77.7
 
+feature-exists:
+  description: meta.feature-exists
+  dart-sass:
+    status: active
+    deprecated: 1.78.0
+
 import:
   description: "@import rules."
   dart-sass:

spec/js-api/deprecations.d.ts.md

@@ -29,7 +29,7 @@
 ### `Deprecations`
 
 <!-- START AUTOGENERATED LIST -->
-<!-- Checksum: 309e4f1f008f08379b824ab6094e13df2e18e187 -->
+<!-- Checksum: dd5c6aa0f1431fa9fc88bb71a96f832adbc165f5 -->
 ```ts
 export interface Deprecations {
   'call-string': Deprecation<'call-string'>;
@@ -48,6 +48,7 @@ export interface Deprecations {
   'fs-importer-cwd': Deprecation<'fs-importer-cwd'>;
   'css-function-mixin': Deprecation<'css-function-mixin'>;
   'mixed-decls': Deprecation<'mixed-decls'>;
+  'feature-exists': Deprecation<'feature-exists'>;
   import: Deprecation<'import'>;
   'user-authored': Deprecation<'user-authored', 'user'>;
 }