Finished adding ability to specify trait implementations needing to directly name the implementation parameter

Author: IsaacShelton

Diff for: src/asg/func.rs

@@ -1,4 +1,5 @@
 use crate::{asg::*, name::ResolvedName, source_files::Source, tag::Tag};
+use indexmap::IndexMap;
 use std::{collections::HashSet, fmt::Display};
 
 #[derive(Clone, Debug)]
@@ -48,7 +49,7 @@ impl<'a> CurrentConstraints {
 
 #[derive(Clone, Debug)]
 pub struct ImplParams {
-    pub params: HashMap<String, GenericTraitRef>,
+    pub params: IndexMap<String, GenericTraitRef>,
 }
 
 #[derive(Clone, Debug)]

Diff for: src/resolve/expr/call.rs

@@ -94,7 +94,7 @@ pub fn call_callee(
                 .iter()
                 .filter(|(param_name, param)| {
                     param.trait_ref == arg_concrete_trait.trait_ref
-                        && used_names.contains(*param_name)
+                        && !used_names.contains(*param_name)
                 })
                 .map(|(param_name, _)| param_name)
                 .next()

Diff for: src/resolve/func_head.rs

@@ -13,7 +13,7 @@ use crate::{
     tag::Tag,
     workspace::fs::FsNodeId,
 };
-use std::collections::HashMap;
+use indexmap::IndexMap;
 
 pub fn create_func_heads<'a>(
     ctx: &mut ResolveCtx,
@@ -102,7 +102,7 @@ pub fn create_func_head<'a>(
         .unwrap_or_default();
 
     let impl_params = {
-        let mut params = HashMap::default();
+        let mut params = IndexMap::default();
 
         for given in &head.givens {
             let trait_ty = type_ctx.resolve(&given.ty)?;