more cfail tests

tests/cfail/exception.rs

+#![deny(warnings)]
+#![feature(proc_macro)]
+
+extern crate cortex_m_rtfm as rtfm;
+extern crate stm32f103xx;
+
+use rtfm::app;
+
+app! {
+    //~^ error no associated item named `SYS_TICK` found for type
+    //~| error no associated item named `SYS_TICK` found for type
+    device: stm32f103xx,
+
+    tasks: {
+        // ERROR exceptions can't be enabled / disabled here
+        SYS_TICK: {
+            enabled: true,
+            priority: 1,
+        },
+    },
+}
+
+fn init(_p: init::Peripherals) {}
+
+fn idle() -> ! {
+    loop {}
+}

tests/cfail/interrupt.rs

+#![deny(warnings)]
+#![feature(proc_macro)]
+
+extern crate cortex_m_rtfm as rtfm;
+extern crate stm32f103xx;
+
+use rtfm::app;
+
+app! { //~ error no associated item named `EXTI0` found for type
+    device: stm32f103xx,
+
+    tasks: {
+        // ERROR `enabled` needs to be specified for interrupts
+        EXTI0: {
+            priority: 1,
+        },
+    },
+}
+
+fn init(_p: init::Peripherals) {}
+
+fn idle() -> ! {
+    loop {}
+}