ASTScope: Remove isATypeDeclScope()

Author: slavapestov

include/swift/AST/ASTScope.h

@@ -344,9 +344,6 @@ class ASTScopeImpl {
   virtual NullablePtr<ASTScopeImpl> insertionPointForDeferredExpansion();
   virtual SourceRange sourceRangeForDeferredExpansion() const;
 
-public:
-  bool isATypeDeclScope() const;
-
 private:
   virtual ScopeCreator &getScopeCreator();
 

lib/AST/ASTScopeCreation.cpp

@@ -1424,11 +1424,6 @@ AbstractPatternEntryScope::AbstractPatternEntryScope(
                  "out of bounds");
 }
 
-bool ASTScopeImpl::isATypeDeclScope() const {
-  Decl *const pd = getDeclIfAny().getPtrOrNull();
-  return pd && (isa<NominalTypeDecl>(pd) || isa<ExtensionDecl>(pd));
-}
-
 #pragma mark new operators
 void *ASTScopeImpl::operator new(size_t bytes, const ASTContext &ctx,
                                  unsigned alignment) {