Function getTrailingWhitespaceStartPosition

test/fixtures/snapshot/typescript.js:147842–147851

* @param start The position of the first character in range * @param end The position of the last character in range

(start, end)

             * @param end The position of the last character in range
             */
            function getTrailingWhitespaceStartPosition(start, end) {
                var pos = end;
                while (pos >= start && ts.isWhiteSpaceSingleLine(sourceFile.text.charCodeAt(pos))) {
                    pos--;
                }
                if (pos !== end) {
                    return pos + 1;
                }
                return -1;
            }
            /**
             * Trimming will be done for lines after the previous range.
             * Exclude comments as they had been previously processed.