Function serializeTypeForDeclaration

test/fixtures/snapshot/typescript.js:53917–53939

* Unlike `typeToTypeNodeHelper`, this handles setting up the `AllowUniqueESSymbolType` flag * so a `unique symbol` is returned when appropriate for the input symbol, rather than `typeof sym`

(context, type, symbol, enclosingDeclaration, includePrivateSymbol, bundled)

             * so a `unique symbol` is returned when appropriate for the input symbol, rather than `typeof sym`
             */
            function serializeTypeForDeclaration(context, type, symbol, enclosingDeclaration, includePrivateSymbol, bundled) {
                if (!isErrorType(type) && enclosingDeclaration) {
                    var declWithExistingAnnotation = getDeclarationWithTypeAnnotation(symbol, enclosingDeclaration);
                    if (declWithExistingAnnotation && !ts.isFunctionLikeDeclaration(declWithExistingAnnotation) && !ts.isGetAccessorDeclaration(declWithExistingAnnotation)) {
                        // try to reuse the existing annotation
                        var existing = ts.getEffectiveTypeAnnotationNode(declWithExistingAnnotation);
                        if (typeNodeIsEquivalentToType(existing, declWithExistingAnnotation, type) && existingTypeNodeIsNotReferenceOrIsReferenceWithCompatibleTypeArgumentCount(existing, type)) {
                            var result_6 = serializeExistingTypeNode(context, existing, includePrivateSymbol, bundled);
                            if (result_6) {
                                return result_6;
                            }
                        }
                    }
                }
                var oldFlags = context.flags;
                if (type.flags & 8192 /* TypeFlags.UniqueESSymbol */ &&
                    type.symbol === symbol && (!context.enclosingDeclaration || ts.some(symbol.declarations, function (d) { return ts.getSourceFileOfNode(d) === ts.getSourceFileOfNode(context.enclosingDeclaration); }))) {
                    context.flags |= 1048576 /* NodeBuilderFlags.AllowUniqueESSymbolType */;
                }
                var result = typeToTypeNodeHelper(type, context);
                context.flags = oldFlags;
                return result;
            }
            function typeNodeIsEquivalentToType(typeNode, annotatedDeclaration, type) {
                var typeFromTypeNode = getTypeFromTypeNode(typeNode);
                if (typeFromTypeNode === type) {