Added .ino file to a subfolder to be sure SketchLoader doesn't load it.

See #65

Signed-off-by: Federico Fissore <f.fissore@arduino.cc>

Author: Federico Fissore

src/arduino.cc/builder/test/sketch_loader_test.go

@@ -136,6 +136,8 @@ func TestLoadSketchFromFolder(t *testing.T) {
 
 	require.True(t, strings.Index(sketch.MainFile.Name, "sketch_with_subfolders.ino") != -1)
 
+	require.Equal(t, 0, len(sketch.OtherSketchFiles))
+
 	require.Equal(t, 2, len(sketch.AdditionalFiles))
 	require.True(t, strings.Index(sketch.AdditionalFiles[0].Name, "other.cpp") != -1)
 	require.True(t, strings.Index(sketch.AdditionalFiles[1].Name, "other.h") != -1)

src/arduino.cc/builder/test/sketch_with_subfolders/subfolder/dont_load_me.ino

@@ -0,0 +1 @@
+#error "Whattya looking at?"