Fix build issues

src/Terminal.integration.ts

@@ -13,7 +13,6 @@ import * as path from 'path';
 import * as pty from 'node-pty';
 import { assert } from 'chai';
 import { Terminal } from './Terminal';
-import { Terminal as PublicTerminal } from './public/Terminal';
 import { IViewport } from './Types';
 import { CellData, WHITESPACE_CELL_CHAR } from './core/buffer/BufferLine';
 

src/public/Terminal.ts

@@ -4,7 +4,8 @@
  */
 
 import { Terminal as ITerminalApi, ITerminalOptions, IMarker, IDisposable, ILinkMatcherOptions, ITheme, ILocalizableStrings, IBuffer as IBufferApi, IBufferLine as IBufferLineApi, IBufferCell as IBufferCellApi } from 'xterm';
-import { ITerminal, IBufferLine, IBuffer } from '../Types';
+import { ITerminal, IBuffer } from '../Types';
+import { IBufferLine } from '../core/Types';
 import { Terminal as TerminalCore } from '../Terminal';
 import * as Strings from '../Strings';
 import { IEvent } from '../common/EventEmitter2';