Add generic AstVisitor

Author: GerardSmit

src/Esprima/Ast/AccessorProperty.cs

@@ -28,7 +28,7 @@ public AccessorProperty(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullableAt2(Decorators, Key, Value);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitAccessorProperty(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitAccessorProperty(this);
 
     public AccessorProperty UpdateWith(Expression key, Expression? value, in NodeList<Decorator> decorators)
     {

src/Esprima/Ast/ArrayExpression.cs

@@ -19,7 +19,7 @@ public ArrayExpression(in NodeList<Expression?> elements) : base(Nodes.ArrayExpr
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullable(Elements);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitArrayExpression(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitArrayExpression(this);
 
     public ArrayExpression UpdateWith(in NodeList<Expression?> elements)
     {

src/Esprima/Ast/ArrayPattern.cs

@@ -19,7 +19,7 @@ public ArrayPattern(in NodeList<Node?> elements) : base(Nodes.ArrayPattern)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullable(Elements);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitArrayPattern(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitArrayPattern(this);
 
     public ArrayPattern UpdateWith(in NodeList<Node?> elements)
     {

src/Esprima/Ast/ArrowFunctionExpression.cs

@@ -38,7 +38,7 @@ public ArrowFunctionExpression(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Params, Body);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitArrowFunctionExpression(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitArrowFunctionExpression(this);
 
     public ArrowFunctionExpression UpdateWith(in NodeList<Node> parameters, StatementListItem body)
     {

src/Esprima/Ast/ArrowParameterPlaceHolder.cs

@@ -26,5 +26,5 @@ public ArrowParameterPlaceHolder(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Params);
 
-    protected internal override object? Accept(AstVisitor visitor) => throw new NotSupportedException();
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => throw new NotSupportedException();
 }

src/Esprima/Ast/AssignmentExpression.cs

@@ -102,7 +102,7 @@ public static string GetAssignmentOperatorToken(AssignmentOperator op)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Left, Right);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitAssignmentExpression(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitAssignmentExpression(this);
 
     public AssignmentExpression UpdateWith(Node left, Expression right)
     {

src/Esprima/Ast/AssignmentPattern.cs

@@ -21,7 +21,7 @@ public AssignmentPattern(Node left, Expression right) : base(Nodes.AssignmentPat
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Left, Right);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitAssignmentPattern(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitAssignmentPattern(this);
 
     public AssignmentPattern UpdateWith(Node left, Expression right)
     {

src/Esprima/Ast/AwaitExpression.cs

@@ -14,7 +14,7 @@ public AwaitExpression(Expression argument) : base(Nodes.AwaitExpression)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Argument);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitAwaitExpression(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitAwaitExpression(this);
 
     public AwaitExpression UpdateWith(Expression argument)
     {

src/Esprima/Ast/BinaryExpression.cs

@@ -125,7 +125,7 @@ public static string GetBinaryOperatorToken(BinaryOperator op)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Left, Right);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitBinaryExpression(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitBinaryExpression(this);
 
     protected virtual BinaryExpression Rewrite(Expression left, Expression right)
     {

src/Esprima/Ast/BlockStatement.cs

@@ -16,7 +16,7 @@ public BlockStatement(in NodeList<Statement> body) : base(Nodes.BlockStatement)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Body);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitBlockStatement(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitBlockStatement(this);
 
     public BlockStatement UpdateWith(in NodeList<Statement> body)
     {