Mention which package was not found in the build state.

Author: nojaf

rescript.json

@@ -1,6 +1,8 @@
 {
     "name": "rescript",
     "bs-dependencies": [
-        "@tests/gentype-react-example"
+        "@tests/gentype-react-example",
+        "@tests/rescript-react",
+        "@tests/analysis"
     ]
 }

rewatch/src/build/clean.rs

@@ -65,7 +65,12 @@ fn clean_source_files(build_state: &BuildState, root_package: &packages::Package
         .values()
         .filter_map(|module| match &module.source_type {
             SourceType::SourceFile(source_file) => {
-                let package = build_state.packages.get(&module.package_name).unwrap();
+                let package = build_state.packages.get(&module.package_name).unwrap_or_else(|| {
+                    panic!(
+                        "Could not find package for \"{}\" in build state",
+                        &module.package_name
+                    )
+                });
                 Some(
                     root_package
                         .config

tests/analysis_tests/tests/rescript.json

@@ -1,5 +1,5 @@
 {
-  "name": "test",
+  "name": "@tests/analysis",
   "reanalyze": {
     "analysis": ["dce"]
   },

tests/dependencies/rescript-react/rescript.json

@@ -1,5 +1,5 @@
 {
-  "name": "@rescript/react",
+  "name": "@tests/rescript-react",
   "jsx": {
     "version": 4,
     "mode": "classic"