From 1511dd9c241cf4f0f85fddaa2ebb5840ee27f16e Mon Sep 17 00:00:00 2001
From: Klaus Meinhardt <klaus.meinhardt1@gmail.com>
Date: Thu, 2 Mar 2017 17:43:02 +0100
Subject: [PATCH 1/4] Fix parent type of JsxAttributes

---
 src/compiler/types.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index 759d3cd41eb..42b8a140e4b 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -1504,6 +1504,7 @@ namespace ts {
     export type JsxTagNameExpression = PrimaryExpression | PropertyAccessExpression;
 
     export interface JsxAttributes extends ObjectLiteralExpressionBase<JsxAttributeLike> {
+        parent?: JsxOpeningLikeElement;
     }
 
     /// The opening element of a <Tag>...</Tag> JsxElement
@@ -1523,7 +1524,7 @@ namespace ts {
 
     export interface JsxAttribute extends ObjectLiteralElement {
         kind: SyntaxKind.JsxAttribute;
-        parent?: JsxOpeningLikeElement;
+        parent?: JsxAttributes;
         name: Identifier;
         /// JSX attribute initializers are optional; <X y /> is sugar for <X y={true} />
         initializer?: StringLiteral | JsxExpression;
@@ -1531,7 +1532,7 @@ namespace ts {
 
     export interface JsxSpreadAttribute extends ObjectLiteralElement {
         kind: SyntaxKind.JsxSpreadAttribute;
-        parent?: JsxOpeningLikeElement;
+        parent?: JsxAttributes;
         expression: Expression;
     }
 

From 6e086980a4955d2b539d61ba00ddd40afa0e0413 Mon Sep 17 00:00:00 2001
From: Klaus Meinhardt <klaus.meinhardt1@gmail.com>
Date: Mon, 20 Mar 2017 22:07:15 +0100
Subject: [PATCH 2/4] Also fix type of NewExpression#arguments

---
 src/compiler/types.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index 42b8a140e4b..6a42c57cd64 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -1450,7 +1450,7 @@ namespace ts {
         kind: SyntaxKind.NewExpression;
         expression: LeftHandSideExpression;
         typeArguments?: NodeArray<TypeNode>;
-        arguments: NodeArray<Expression>;
+        arguments?: NodeArray<Expression>;
     }
 
     export interface TaggedTemplateExpression extends MemberExpression {

From fcca27c03eb11d45691433b9fcaf60d94e118f13 Mon Sep 17 00:00:00 2001
From: Klaus Meinhardt <klaus.meinhardt1@gmail.com>
Date: Tue, 21 Mar 2017 20:21:43 +0100
Subject: [PATCH 3/4] Fix type of HeritageClause#types

---
 src/compiler/types.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index 6a42c57cd64..ba383ed1bce 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -1778,7 +1778,7 @@ namespace ts {
         kind: SyntaxKind.HeritageClause;
         parent?: InterfaceDeclaration | ClassDeclaration | ClassExpression;
         token: SyntaxKind.ExtendsKeyword | SyntaxKind.ImplementsKeyword;
-        types?: NodeArray<ExpressionWithTypeArguments>;
+        types: NodeArray<ExpressionWithTypeArguments>;
     }
 
     export interface TypeAliasDeclaration extends DeclarationStatement {

From eb8972d5ff9eec8dc3ad9c29a8d4b57fb6d0533b Mon Sep 17 00:00:00 2001
From: Klaus Meinhardt <klaus.meinhardt1@gmail.com>
Date: Wed, 22 Mar 2017 15:28:51 +0100
Subject: [PATCH 4/4] Add parent types to class elements

---
 src/compiler/types.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index ba383ed1bce..78425c9eac5 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -815,18 +815,21 @@ namespace ts {
 
     export interface ConstructorDeclaration extends FunctionLikeDeclaration, ClassElement {
         kind: SyntaxKind.Constructor;
+        parent?: ClassDeclaration | ClassExpression;
         body?: FunctionBody;
     }
 
     // For when we encounter a semicolon in a class declaration.  ES6 allows these as class elements.
     export interface SemicolonClassElement extends ClassElement {
         kind: SyntaxKind.SemicolonClassElement;
+        parent?: ClassDeclaration | ClassExpression;
     }
 
     // See the comment on MethodDeclaration for the intuition behind GetAccessorDeclaration being a
     // ClassElement and an ObjectLiteralElement.
     export interface GetAccessorDeclaration extends FunctionLikeDeclaration, ClassElement, ObjectLiteralElement {
         kind: SyntaxKind.GetAccessor;
+        parent?: ClassDeclaration | ClassExpression | ObjectLiteralExpression;
         name: PropertyName;
         body: FunctionBody;
     }
@@ -835,6 +838,7 @@ namespace ts {
     // ClassElement and an ObjectLiteralElement.
     export interface SetAccessorDeclaration extends FunctionLikeDeclaration, ClassElement, ObjectLiteralElement {
         kind: SyntaxKind.SetAccessor;
+        parent?: ClassDeclaration | ClassExpression | ObjectLiteralExpression;
         name: PropertyName;
         body: FunctionBody;
     }
@@ -843,6 +847,7 @@ namespace ts {
 
     export interface IndexSignatureDeclaration extends SignatureDeclaration, ClassElement, TypeElement {
         kind: SyntaxKind.IndexSignature;
+        parent?: ClassDeclaration | ClassExpression | InterfaceDeclaration | TypeLiteralNode;
     }
 
     export interface TypeNode extends Node {
@@ -937,6 +942,7 @@ namespace ts {
 
     export interface MappedTypeNode extends TypeNode, Declaration {
         kind: SyntaxKind.MappedType;
+        parent?: TypeAliasDeclaration;
         readonlyToken?: ReadonlyToken;
         typeParameter: TypeParameterDeclaration;
         questionToken?: QuestionToken;