Print files / tests as they're processed when --debug

This is because there's no proper way to catch panics in Rust, which
  makes it hard to know _which_ test did cause the panic when this
  happen. The stack trace gives little detail about this, but we can
  print this information before it happens -- making it easier to
  identify the culprit.

crates/cli/src/lib.rs

@@ -101,6 +101,14 @@ impl telemetry::EventListener for Terminal {
                     output_path.to_str().unwrap_or("").bright_blue()
                 );
             }
+            telemetry::Event::GeneratingUPLCFor { name, path } => {
+                println!(
+                    "{} {}.{{{}}}",
+                    "...Generating Untyped Plutus Core for".bold().purple(),
+                    path.to_str().unwrap_or("").blue(),
+                    name.bright_blue(),
+                );
+            }
             telemetry::Event::EvaluatingFunction { results } => {
                 println!("{}\n", "...Evaluating function".bold().purple());
 

crates/project/src/lib.rs

@@ -173,8 +173,9 @@ where
                 match_tests,
                 verbose,
             } => {
-                let tests = self
-                    .collect_scripts(&checked_modules, |def| matches!(def, Definition::Test(..)))?;
+                let tests = self.collect_scripts(&checked_modules, verbose, |def| {
+                    matches!(def, Definition::Test(..))
+                })?;
                 if !tests.is_empty() {
                     self.event_listener.handle_event(Event::RunningTests);
                 }
@@ -516,6 +517,7 @@ where
     fn collect_scripts(
         &mut self,
         checked_modules: &CheckedModules,
+        verbose: bool,
         should_collect: fn(&TypedDefinition) -> bool,
     ) -> Result<Vec<Script>, Error> {
         let mut programs = Vec::new();
@@ -594,6 +596,13 @@ where
                 ..
             } = func_def;
 
+            if verbose {
+                self.event_listener.handle_event(Event::GeneratingUPLCFor {
+                    name: name.clone(),
+                    path: input_path.clone(),
+                })
+            }
+
             let mut generator = CodeGenerator::new(
                 &functions,
                 // &type_aliases,

crates/project/src/telemetry.rs

@@ -24,6 +24,10 @@ pub enum Event {
     GeneratingUPLC {
         output_path: PathBuf,
     },
+    GeneratingUPLCFor {
+        name: String,
+        path: PathBuf,
+    },
     EvaluatingFunction {
         results: Vec<EvalInfo>,
     },