Add the static and literal bounds to scope names. This is required by…

… tracing, and several other backends require &'static strings

profiling/examples/simple.rs

@@ -50,10 +50,7 @@ fn some_other_function(iterations: usize) {
     burn_time(5);
 
     {
-        // Make this a non-literal to touch more of the API. It still has to be 'static scope though
-        // for multiple of the backends
-        let scope_name = "do_iterations";
-        profiling::scope!(scope_name);
+        profiling::scope!("do_iterations");
         for i in 0..iterations {
             profiling::scope!(
                 "some_inner_function_that_sleeps",

profiling/src/type_check_impl.rs

@@ -2,10 +2,10 @@
 
 #[macro_export]
 macro_rules! scope {
-    ($name:expr) => {
+    ($name:literal) => {
         let _: &str = $name;
     };
-    ($name:expr, $data:expr) => {
+    ($name:literal, $data:expr) => {
         let _: &str = $name;
         let _: &str = $data;
     };