Function addDuplicateDeclarationError

test/fixtures/snapshot/typescript.js:49236–49254

(node, message, symbolName, relatedNodes)

            });
        }
        function addDuplicateDeclarationError(node, message, symbolName, relatedNodes) {
            var errorNode = (ts.getExpandoInitializer(node, /*isPrototypeAssignment*/ false) ? ts.getNameOfExpando(node) : ts.getNameOfDeclaration(node)) || node;
            var err = lookupOrIssueError(errorNode, message, symbolName);
            var _loop_7 = function (relatedNode) {
                var adjustedNode = (ts.getExpandoInitializer(relatedNode, /*isPrototypeAssignment*/ false) ? ts.getNameOfExpando(relatedNode) : ts.getNameOfDeclaration(relatedNode)) || relatedNode;
                if (adjustedNode === errorNode)
                    return "continue";
                err.relatedInformation = err.relatedInformation || [];
                var leadingMessage = ts.createDiagnosticForNode(adjustedNode, ts.Diagnostics._0_was_also_declared_here, symbolName);
                var followOnMessage = ts.createDiagnosticForNode(adjustedNode, ts.Diagnostics.and_here);
                if (ts.length(err.relatedInformation) >= 5 || ts.some(err.relatedInformation, function (r) { return ts.compareDiagnostics(r, followOnMessage) === 0 /* Comparison.EqualTo */ || ts.compareDiagnostics(r, leadingMessage) === 0 /* Comparison.EqualTo */; }))
                    return "continue";
                ts.addRelatedInfo(err, !ts.length(err.relatedInformation) ? leadingMessage : followOnMessage);
            };
            for (var _i = 0, _a = relatedNodes || ts.emptyArray; _i < _a.length; _i++) {
                var relatedNode = _a[_i];
                _loop_7(relatedNode);
            }
        }
        function combineSymbolTables(first, second) {
            if (!(first === null || first === void 0 ? void 0 : first.size))
                return second;