Remove unused SymbolLinks properties (#58393)

src/compiler/checker.ts

@@ -780,7 +780,6 @@ import {
  JSDocAugmentsTag,
  JSDocCallbackTag,
  JSDocComment,
- JSDocEnumTag,
  JSDocFunctionType,
  JSDocImplementsTag,
  JSDocImportTag,
@@ -1286,7 +1285,6 @@ const enum TypeSystemPropertyName {
  DeclaredType,
  ResolvedReturnType,
  ImmediateBaseConstraint,
- EnumTagType,
  ResolvedTypeArguments,
  ResolvedBaseTypes,
  WriteType,
@@ -10507,8 +10505,6 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
  switch (propertyName) {
  case TypeSystemPropertyName.Type:
  return !!getSymbolLinks(target as Symbol).type;
- case TypeSystemPropertyName.EnumTagType:
- return !!(getNodeLinks(target as JSDocEnumTag).resolvedEnumType);
  case TypeSystemPropertyName.DeclaredType:
  return !!getSymbolLinks(target as Symbol).declaredType;
  case TypeSystemPropertyName.ResolvedBaseConstructorType:

src/compiler/types.ts

@@ -5918,10 +5918,7 @@ export interface SymbolLinks {
  uniqueESSymbolType?: Type; // UniqueESSymbol type for a symbol
  declaredType?: Type; // Type of class, interface, enum, type alias, or type parameter
  typeParameters?: TypeParameter[]; // Type parameters of type alias (undefined if non-generic)
- outerTypeParameters?: TypeParameter[]; // Outer type parameters of anonymous object type
  instantiations?: Map<string, Type>; // Instantiations of generic type alias (undefined if non-generic)
- aliasSymbol?: Symbol; // Alias associated with generic type alias instantiation
- aliasTypeArguments?: readonly Type[] // Alias type arguments (if any)
  inferredClassSymbol?: Map<SymbolId, TransientSymbol>; // Symbol of an inferred ES5 constructor function
  mapper?: TypeMapper; // Type mapper for instantiation alias
  referenced?: boolean; // True if alias symbol has been referenced as a value that can be emitted
@@ -5936,8 +5933,6 @@ export interface SymbolLinks {
  typeParametersChecked?: boolean; // True if type parameters of merged class and interface declarations have been checked.
  isDeclarationWithCollidingName?: boolean; // True if symbol is block scoped redeclaration
  bindingElement?: BindingElement; // Binding element associated with property symbol
- exportsSomeValue?: boolean; // True if module exports some value (not just types)
- enumKind?: EnumKind; // Enum declaration classification
  originatingImport?: ImportDeclaration | ImportCall; // Import declaration which produced the symbol, present if the symbol is marked as uncallable but had call signatures in `resolveESModuleSymbol`
  lateSymbol?: Symbol; // Late-bound symbol for a computed property
  specifierCache?: Map<ModeAwareCacheKey, string>; // For symbols corresponding to external modules, a cache of incoming path -> module specifier name mappings
@@ -5957,12 +5952,6 @@ export interface SymbolLinks {
  filteredIndexSymbolCache?: Map<string, Symbol> //Symbol with applicable declarations
 }
 
-/** @internal */
-export const enum EnumKind {
- Numeric, // Numeric enum (each member has a TypeFlags.Enum type)
- Literal, // Literal enum (each member has a TypeFlags.EnumLiteral type)
-}
-
 // dprint-ignore
 /** @internal */
 export const enum CheckFlags {
@@ -6119,7 +6108,6 @@ export interface EvaluatorResult<T extends string | number | undefined = string
 export interface NodeLinks {
  flags: NodeCheckFlags; // Set of flags specific to Node
  resolvedType?: Type; // Cached type of type node
- resolvedEnumType?: Type; // Cached constraint type from enum jsdoc tag
  resolvedSignature?: Signature; // Cached signature of signature node or call expression
  resolvedSymbol?: Symbol; // Cached name resolution result
  resolvedIndexInfo?: IndexInfo; // Cached indexing info resolution result