fix(tooltip) getScrollTop/getScrollLeft moved to editor in Atom 1.1. Closes #647

Author: fcoury

dist/main/atom/tooltipManager.js

@@ -46,8 +46,8 @@ function attach(editorView, editor) {
         if (exprTypeTooltip)
             return;
         var pixelPt = pixelPositionFromMouseEvent(editorView, e);
-        pixelPt.top += editor.displayBuffer.getScrollTop();
-        pixelPt.left += editor.displayBuffer.getScrollLeft();
+        pixelPt.top += editor.getScrollTop();
+        pixelPt.left += editor.getScrollLeft();
         var screenPt = editor.screenPositionForPixelPosition(pixelPt);
         var bufferPt = editor.bufferPositionForScreenPosition(screenPt);
         var curCharPixelPt = rawView.pixelPositionForBufferPosition([bufferPt.row, bufferPt.column]);