add test for multiline template

Author: facchinm

src/arduino.cc/builder/test/sketch_with_multiline_template/sketch_with_multiline_template.ino

@@ -0,0 +1,10 @@
+template< typename T >  
+T func(T t){
+    return t * t;
+}
+
+void setup() {
+  func( 12.34f );
+}
+
+void loop() {}

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

@@ -209,6 +209,10 @@ func TestTryBuild040(t *testing.T) {
 	tryBuild(t, "sketch_with_externC_multiline", "sketch_with_externC_multiline.ino")
 }
 
+func TestTryBuild041(t *testing.T) {
+	tryBuild(t, "sketch_with_multiline_template", "sketch_with_multiline_template.ino")
+}
+
 func makeDefaultContext(t *testing.T) *types.Context {
 	DownloadCoresAndToolsAndLibraries(t)