Add deprecatedCompat for isParameter

Author: jakebailey

src/deprecatedCompat/5.5/isParameter.ts

@@ -0,0 +1,20 @@
+import {
+    Node,
+    ParameterDeclaration,
+    SyntaxKind,
+} from "../_namespaces/ts.js";
+import { deprecate } from "../deprecate.js";
+
+// DEPRECATION: Renamed node tests
+// DEPRECATION PLAN:
+//     - soft: 5.6
+//     - warn: 5.7
+//     - error: TBD
+/** @deprecated Use `isParameterDeclaration` instead. */
+export const isParameter = deprecate(function isParameter(node: Node): node is ParameterDeclaration {
+    return node.kind === SyntaxKind.Parameter;
+}, {
+    since: "5.6",
+    warnAfter: "5.7",
+    message: "Use `isParameterDeclaration` instead.",
+});

src/deprecatedCompat/_namespaces/ts.ts

@@ -2,3 +2,4 @@
 
 export * from "../../compiler/_namespaces/ts.js";
 export * from "../deprecations.js";
+export * from "../5.5/isParameter.js";

tests/baselines/reference/api/typescript.d.ts

@@ -11220,5 +11220,7 @@ declare namespace ts {
      * @param compilerOptions Optional compiler options.
      */
     function transform<T extends Node>(source: T | T[], transformers: TransformerFactory<T>[], compilerOptions?: CompilerOptions): TransformationResult<T>;
+    /** @deprecated Use `isParameterDeclaration` instead. */
+    const isParameter: (node: Node) => node is ParameterDeclaration;
 }
 export = ts;