Implement reusable interface conformance rules

src/capability-language/generic-types.ts

@@ -34,6 +34,7 @@ export class GenericSourceTypes {
   readonly applications = new Map<string, InterfaceRevision>();
   readonly aliases = new Map<string, ValueAliasDefinition>();
   parameters = new Map<string, TypeParameter>();
+  bindings = new Map<string, ClosedTypeArgument>();
   self?: AtomId;
   private active: string[] = [];
   private applicationCount = 0;
@@ -42,7 +43,7 @@ export class GenericSourceTypes {
 
   environment(): GenericTypeEnvironment {
     return {
-      arguments: new Map(),
+      arguments: this.bindings,
       aliases: this.aliases,
       self: this.self,
       applyInterface: (id, args) => this.apply(id, args).revisionId,