Resolve "Feature: Send endpoint for relations"

Closes #37 (closed)

ragconnect.tests/src/test/01-input/relation/Test.jadd

@@ -22,12 +22,15 @@ aspect NameResolution {
   }
 
   // override resolving of SenderRoot for As in ReceiverRoot
-  // TODO change overriden attr to "globallyResolveSenderRootByToken" (should work for all relations in the end)
-  refine RefResolverStubs eq A.resolveToMyAByToken(String id) = getParent() != null ? resolveToMyAByTokenInh(id) : null;
+  refine RefResolverStubs eq ASTNode.globallyResolveSenderRootByToken(String id) = getParent() != null && !getParent().isListWithoutParent() ? resolveSenderRootInh(id) : null;
 
-  inh SenderRoot A.resolveToMyAByTokenInh(String id);
-  eq SenderRoot.getA().resolveToMyAByTokenInh(String id) = globallyResolveSenderRootByToken(id);
-  eq ReceiverRoot.getChild().resolveToMyAByTokenInh(String id) = getFakeSenderRoot(id);
+  syn boolean ASTNode.isList() = false;
+  eq JastAddList.isList() = true;
+  syn boolean ASTNode.isListWithoutParent() = isList() && getParent() == null;
+
+  inh SenderRoot ASTNode.resolveSenderRootInh(String id);
+  eq SenderRoot.getChild().resolveSenderRootInh(String id) = globallyResolveSenderRootByToken(id);
+  eq ReceiverRoot.getChild().resolveSenderRootInh(String id) = getFakeSenderRoot(id);
 
   syn nta SenderRoot ReceiverRoot.getFakeSenderRoot(String id) = new SenderRoot();
 }