Sema.h: delete unused variables/functions/type aliases

clang/include/clang/Sema/Sema.h

@@ -1072,10 +1072,6 @@ public:
   /// have been declared.
   bool GlobalNewDeleteDeclared;
 
-  /// A flag to indicate that we're in a context that permits abstract
-  /// references to fields.  This is really a
-  bool AllowAbstractFieldReference;
-
   /// Describes how the expressions currently being parsed are
   /// evaluated at run-time, if at all.
   enum class ExpressionEvaluationContext {
@@ -1134,9 +1130,6 @@ public:
     /// Whether the enclosing context needed a cleanup.
     CleanupInfo ParentCleanup;
 
-    /// Whether we are in a decltype expression.
-    bool IsDecltype;
-
     /// The number of active cleanup objects when we entered
     /// this expression evaluation context.
     unsigned NumCleanupObjects;
@@ -1635,7 +1628,6 @@ public:
     llvm::Optional<ImmediateDiagBuilder> ImmediateDiag;
     llvm::Optional<unsigned> PartialDiagId;
   };
-  using DiagBuilderT = SemaDiagnosticBuilder;
 
   /// Is the last error level diagnostic immediate. This is used to determined
   /// whether the next info diagnostic should be immediate.
@@ -2810,12 +2802,6 @@ public:
   /// and partial specializations are visible, and diagnose if not.
   void checkSpecializationVisibility(SourceLocation Loc, NamedDecl *Spec);
 
-  /// We've found a use of a template specialization that would select a
-  /// partial specialization. Check that the partial specialization is visible,
-  /// and diagnose if not.
-  void checkPartialSpecializationVisibility(SourceLocation Loc,
-                                            NamedDecl *Spec);
-
   /// Retrieve a suitable printing policy for diagnostics.
   PrintingPolicy getPrintingPolicy() const {
     return getPrintingPolicy(Context, PP);

clang/lib/Sema/SemaTemplate.cpp

@@ -11114,14 +11114,3 @@ void Sema::checkSpecializationVisibility(SourceLocation Loc, NamedDecl *Spec) {
 
   ExplicitSpecializationVisibilityChecker(*this, Loc).check(Spec);
 }
-
-/// Check whether a template partial specialization that we've discovered
-/// is hidden, and produce suitable diagnostics if so.
-void Sema::checkPartialSpecializationVisibility(SourceLocation Loc,
-                                                NamedDecl *Spec) {
-  llvm::SmallVector<Module *, 8> Modules;
-  if (!hasVisibleDeclaration(Spec, &Modules))
-    diagnoseMissingImport(Loc, Spec, Spec->getLocation(), Modules,
-                          MissingImportKind::PartialSpecialization,
-                          /*Recover*/true);
-}