Add provisional param decl "explicit_param_decls"

CHANGELOG.md

@@ -6,6 +6,8 @@
 
 ## 0.9.10
 - Added indentation-style rules to the lint module with configurable indent size as specified in [example_lint_cfg.json](./example_files/example_lint_cfg.README)
+- Added "explicit\_param\_decl" as a know provisional (NOTE: the provisionals
+  actual functionality is not implemented)
 - Configuration changes are now correctly tracked with the pull-model, and the
   server should correctly update most settings without a restart on config
   change.

src/analysis/provisionals.rs

@@ -11,7 +11,10 @@ use crate::analysis::parsing::tree::LeafToken;
 use crate::analysis::FileSpec;
 
 #[derive(Debug, Clone, Copy, Eq, PartialEq, Hash, EnumString)]
+#[strum(serialize_all = "snake_case")]
 pub enum Provisional {
+    // TODO: implement the neccessary checks for explicit params
+    ExplicitParamDecl,
 }
 
 impl fmt::Display for Provisional {
@@ -57,3 +60,17 @@ impl ProvisionalsManager {
         }
     }
 }
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn test_provisionals_parsing() {
+        for (s, p) in [
+            ("explicit_param_decl", Provisional::ExplicitParamDecl),
+        ] {
+            assert_eq!(Provisional::from_str(s), Ok(p));
+        }
+    }
+}