Merge SketchData.sortCodes() into addCode()

By now, all calls to `addCode()` were followed by a call to
`sortCodes()`, and it seems like a task for SketchData to keep its list
sorted. Previously, this separation made some sense, since `addCode()`
was also used while loading a sketch, and you would only want to sort
once. Now, sketch loading uses a SortedSet, so this is no longer a
requirement.

Author: matthijskooijman

app/src/processing/app/Sketch.java

@@ -375,9 +375,6 @@ protected void nameCode(String newName) {
       data.addCode(code);
     }
 
-    // sort the entries
-    data.sortCode();
-
     // set the new guy as current
     editor.selectTab(editor.findTabIndex(newName));
 
@@ -829,7 +826,6 @@ public boolean addFile(File sourceFile) {
       } else {
         ensureExistence();
         data.addCode(newCode);
-        data.sortCode();
       }
       editor.selectTab(editor.findTabIndex(filename));
     }

arduino-core/src/processing/app/SketchData.java

@@ -181,6 +181,7 @@ public String getMainFilePath() {
 
   public void addCode(SketchCode sketchCode) {
     codes.add(sketchCode);
+    Collections.sort(codes, CODE_DOCS_COMPARATOR);
   }
 
   protected void replaceCode(SketchCode newCode) {
@@ -192,10 +193,6 @@ protected void replaceCode(SketchCode newCode) {
     }
   }
 
-  protected void sortCode() {
-    Collections.sort(codes, CODE_DOCS_COMPARATOR);
-  }
-
   public SketchCode getCode(int i) {
     return codes.get(i);
   }