Fix type of TypeParameterDeclaration#parent (#25737)

Author: Andy

src/compiler/types.ts

@@ -755,7 +755,7 @@ namespace ts {
 
     export interface TypeParameterDeclaration extends NamedDeclaration {
         kind: SyntaxKind.TypeParameter;
-        parent: DeclarationWithTypeParameters | InferTypeNode;
+        parent: DeclarationWithTypeParameterChildren | InferTypeNode;
         name: Identifier;
         constraint?: TypeNode;
         default?: TypeNode;
@@ -2036,7 +2036,8 @@ namespace ts {
 
     export type ObjectTypeDeclaration = ClassLikeDeclaration | InterfaceDeclaration | TypeLiteralNode;
 
-    export type DeclarationWithTypeParameters = SignatureDeclaration | ClassLikeDeclaration | InterfaceDeclaration | TypeAliasDeclaration | JSDocTemplateTag | JSDocTypedefTag | JSDocCallbackTag | JSDocSignature;
+    export type DeclarationWithTypeParameters = DeclarationWithTypeParameterChildren | JSDocTypedefTag | JSDocCallbackTag | JSDocSignature;
+    export type DeclarationWithTypeParameterChildren = SignatureDeclaration | ClassLikeDeclaration | InterfaceDeclaration | TypeAliasDeclaration | JSDocTemplateTag;
 
     export interface ClassLikeDeclarationBase extends NamedDeclaration, JSDocContainer {
         kind: SyntaxKind.ClassDeclaration | SyntaxKind.ClassExpression;

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

@@ -545,7 +545,7 @@ declare namespace ts {
     }
     interface TypeParameterDeclaration extends NamedDeclaration {
         kind: SyntaxKind.TypeParameter;
-        parent: DeclarationWithTypeParameters | InferTypeNode;
+        parent: DeclarationWithTypeParameterChildren | InferTypeNode;
         name: Identifier;
         constraint?: TypeNode;
         default?: TypeNode;
@@ -1317,7 +1317,8 @@ declare namespace ts {
         block: Block;
     }
     type ObjectTypeDeclaration = ClassLikeDeclaration | InterfaceDeclaration | TypeLiteralNode;
-    type DeclarationWithTypeParameters = SignatureDeclaration | ClassLikeDeclaration | InterfaceDeclaration | TypeAliasDeclaration | JSDocTemplateTag | JSDocTypedefTag | JSDocCallbackTag | JSDocSignature;
+    type DeclarationWithTypeParameters = DeclarationWithTypeParameterChildren | JSDocTypedefTag | JSDocCallbackTag | JSDocSignature;
+    type DeclarationWithTypeParameterChildren = SignatureDeclaration | ClassLikeDeclaration | InterfaceDeclaration | TypeAliasDeclaration | JSDocTemplateTag;
     interface ClassLikeDeclarationBase extends NamedDeclaration, JSDocContainer {
         kind: SyntaxKind.ClassDeclaration | SyntaxKind.ClassExpression;
         name?: Identifier;

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

@@ -545,7 +545,7 @@ declare namespace ts {
     }
     interface TypeParameterDeclaration extends NamedDeclaration {
         kind: SyntaxKind.TypeParameter;
-        parent: DeclarationWithTypeParameters | InferTypeNode;
+        parent: DeclarationWithTypeParameterChildren | InferTypeNode;
         name: Identifier;
         constraint?: TypeNode;
         default?: TypeNode;
@@ -1317,7 +1317,8 @@ declare namespace ts {
         block: Block;
     }
     type ObjectTypeDeclaration = ClassLikeDeclaration | InterfaceDeclaration | TypeLiteralNode;
-    type DeclarationWithTypeParameters = SignatureDeclaration | ClassLikeDeclaration | InterfaceDeclaration | TypeAliasDeclaration | JSDocTemplateTag | JSDocTypedefTag | JSDocCallbackTag | JSDocSignature;
+    type DeclarationWithTypeParameters = DeclarationWithTypeParameterChildren | JSDocTypedefTag | JSDocCallbackTag | JSDocSignature;
+    type DeclarationWithTypeParameterChildren = SignatureDeclaration | ClassLikeDeclaration | InterfaceDeclaration | TypeAliasDeclaration | JSDocTemplateTag;
     interface ClassLikeDeclarationBase extends NamedDeclaration, JSDocContainer {
         kind: SyntaxKind.ClassDeclaration | SyntaxKind.ClassExpression;
         name?: Identifier;