rename anchor -> anchor3 so that it doesn't conflict w/ for-loop block

Author: etpinard

src/components/annotations/draw.js

@@ -207,11 +207,11 @@ function drawRaw(gd, options, index, xa, ya) {
 
     function drawGraphicalElements() {
         // if the text has *only* a link, make the whole box into a link
-        var anchor = annText.selectAll('a');
-        if(anchor.size() === 1 && anchor.text() === annText.text()) {
+        var anchor3 = annText.selectAll('a');
+        if(anchor3.size() === 1 && anchor3.text() === annText.text()) {
             var wholeLink = annTextGroupInner.insert('a', ':first-child').attr({
-                'xlink:xlink:href': anchor.attr('xlink:href'),
-                'xlink:xlink:show': anchor.attr('xlink:show')
+                'xlink:xlink:href': anchor3.attr('xlink:href'),
+                'xlink:xlink:show': anchor3.attr('xlink:show')
             })
             .style({cursor: 'pointer'});