Let importLibrary use Sketch.SKETCH_EXTENSIONS

For determining if the current file was a sketch file, it previously
(indirectly) used a hardcoded "ino" comparison. Now, it uses
`SKETCH_EXTENSIONS` so it also applies to .pde files and the hardcoded
"ino" (and the methods leading up to it) can be removed.

Author: matthijskooijman

app/src/processing/app/SketchController.java

@@ -800,9 +800,10 @@ public void importLibrary(UserLibrary lib) throws IOException {
     // import statements into the main sketch file (code[0])
     // if the current code is a .java file, insert into current
     //if (current.flavor == PDE) {
-    if (hasDefaultExtension(editor.getCurrentTab().getSketchCode())) {
+    SketchCode code = editor.getCurrentTab().getSketchCode();
+    if (code.isExtension(Sketch.SKETCH_EXTENSIONS))
       editor.selectTab(0);
-    }
+
     // could also scan the text in the file to see if each import
     // statement is already in there, but if the user has the import
     // commented out, then this will be a problem.
@@ -1043,16 +1044,6 @@ private boolean sketchFilesAreReadOnly() {
 
   // . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 
-  // Breaking out extension types in order to clean up the code, and make it
-  // easier for other environments (like Arduino) to incorporate changes.
-
-  /**
-   * True if the specified code has the default file extension.
-   */
-  private boolean hasDefaultExtension(SketchCode code) {
-    return code.isExtension(sketch.getDefaultExtension());
-  }
-
   /**
    * Create the data folder if it does not exist already. As a convenience,
    * it also returns the data folder, since it's likely about to be used.

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

@@ -155,13 +155,6 @@ public SketchCode[] getCodes() {
     return codes.toArray(new SketchCode[0]);
   }
 
-  /**
-   * Returns the default extension for this editor setup.
-   */
-  public String getDefaultExtension() {
-    return "ino";
-  }
-
   /**
    * Returns a file object for the primary .pde of this sketch.
    */