feat: rest element should contain information about type annotation

src/convert.ts

@@ -1435,34 +1435,33 @@ export default function convert(config: ConvertConfig): ESTreeNode | null {
     }
 
     case SyntaxKind.Parameter: {
-      let parameter;
+      let parameter: ESTreeNode;
 
       if (node.dotDotDotToken) {
-        parameter = convertChild(node.name);
         Object.assign(result, {
           type: AST_NODE_TYPES.RestElement,
-          argument: parameter
+          argument: convertChild(node.name)
         });
+        parameter = result;
       } else if (node.initializer) {
-        parameter = convertChild(node.name);
+        parameter = convertChild(node.name)!;
         Object.assign(result, {
           type: AST_NODE_TYPES.AssignmentPattern,
           left: parameter,
           right: convertChild(node.initializer)
         });
       } else {
-        parameter = convert({
+        parameter = result = convert({
           node: node.name,
           parent,
           ast,
           additionalOptions
-        });
-        (result as any) = parameter;
+        })!;
       }
 
       if (node.type) {
-        parameter!.typeAnnotation = convertTypeAnnotation(node.type);
-        fixTypeAnnotationParentLocation(parameter!);
+        parameter.typeAnnotation = convertTypeAnnotation(node.type);
+        fixTypeAnnotationParentLocation(parameter);
       }
 
       if (node.questionToken) {

tests/ast-alignment/fixtures-to-test.ts

@@ -351,6 +351,7 @@ tester.addFixturePatternConfig('typescript/basics', {
     'class-with-implements-generic',
     'class-with-implements',
     'class-with-extends-and-implements',
+    'class-with-mixin',
     /**
      * Babel error: parameterName is not included into range of TSTypeAnnotation
      * TODO: report it to babel
@@ -363,8 +364,6 @@ tester.addFixturePatternConfig('typescript/basics', {
     /**
      * Other major AST differences (e.g. fundamentally different node types)
      */
-    'class-with-mixin',
-    'function-with-types-assignation',
     'interface-extends-multiple',
     'interface-extends',
     'interface-type-parameters',
@@ -499,8 +498,6 @@ tester.addFixturePatternConfig('typescript/types', {
     /**
      * AST difference
      */
-    'function-with-rest',
-    'constructor-with-rest',
     'index-signature',
     'index-signature-readonly',
     'literal-number-negative'