Add "_USE_MATH_DEFINES" to test HAL too.

Author: BlueAndi

platformio.ini

@@ -95,9 +95,9 @@ test_port = com9
 platform = native @ ~1.2.1
 build_flags =
     -std=c++11
-    -DTARGET_NATIVE
     -I./lib/Webots/include/c
     -I./lib/Webots/include/cpp
+    -D TARGET_NATIVE
     -D _USE_MATH_DEFINES
 lib_deps =
     MainNative
@@ -122,9 +122,10 @@ webots_robot_serial_tx_channel = 2
 platform = native @ ~1.2.1
 build_flags =
     -std=c++11
-    -DTARGET_NATIVE
-    -DUNIT_TEST
     -Itest/common
+    -D TARGET_NATIVE
+    -D UNIT_TEST
+    -D _USE_MATH_DEFINES
 lib_deps =
     MainTestNative
     BlueAndi/ArduinoNative @ ~0.2.1