Fix added block syntax for interactions in compiler plugin

Modules/LoRe Compiler Plugin/examples/src/main/scala/loreCompilerPlugin/interactionExamples.scala

@@ -26,24 +26,24 @@ object interactionExamplesObject:
     val integerInteraction1 = Interaction[Int, Int]
 
     val integerInteraction2 = Interaction[Int, Int]
-      .requires((a: Int, b: Int) => a > b)
+      .requires { (a: Int, b: Int) => a > b }
 
     val integerInteraction3 = Interaction[Int, Int]
-      .requires((a: Int, b: Int) => a > b)
-      .executes((a: Int, b: Int) => a)
+      .requires { (a: Int, b: Int) => a > b }
+      .executes { (a: Int, b: Int) => a }
 
     val integerInteraction4 = Interaction[Int, Int]
-      .requires((a: Int, b: Int) => a > b)
-      .executes((a: Int, b: Int) => a)
-      .ensures((a: Int, b: Int) => a > b)
+      .requires { (a: Int, b: Int) => a > b }
+      .executes { (a: Int, b: Int) => a }
+      .ensures { (a: Int, b: Int) => a > b }
 
     val integerSource: Source[Int]   = Source(1)
     val integerDerived: Derived[Int] = Derived { integerSource.value + integerSource.value }
 
     val integerInteraction5 = Interaction[Int, Int]
-      .requires((curr: Int, _) => curr < 3)
-      .modifies(integerSource)
-      .executes((curr: Int, _) => curr + 1)
-      .ensures((curr: Int, _) => curr < 3)
+      .requires { (curr: Int, _) => curr < 3 }
+      .modifies { integerSource }
+      .executes { (curr: Int, _) => curr + 1 }
+      .ensures { (curr: Int, _) => curr < 3 }
   end interactionExamplesFunction
 end interactionExamplesObject

Modules/LoRe Compiler Plugin/src/main/scala/loreCompilerPlugin/CompilerPlugin.scala

@@ -242,7 +242,7 @@ class LoRePhase extends PluginPhase:
               rawInteractionTree.sourcePos
             )
             TVar("<error>")
-      case modifiesTree @ Apply(Apply(TypeApply(Select(_, methodName), _), List(innerNode)), List(Ident(modVar)))
+      case modifiesTree @ Apply(Apply(TypeApply(Select(_, methodName), _), List(innerNode)), List(Block(_, Ident(modVar))))
           if methodName.toString == "modifies" =>
         // Interaction modifies is different from the other methods as it doesn't take an arrow function as input
         var innerTerm = buildLoreRhsTerm(innerNode, indentLevel + 1, operandSide)
@@ -321,6 +321,10 @@ class LoRePhase extends PluginPhase:
               arrowTree.sourcePos
             )
             TVar("<error>")
+      case arrowBodyTree @ Block(_, arrowBody) => // Arrow functions part 2
+        // When the body of the arrow function is in the second parameter as opposed to the first, for some reason
+        // This happens for example when you call requires/ensures/executes/modifies on Interactions, "{ (..) => (..) }"
+        buildLoreRhsTerm(arrowBody, indentLevel, operandSide)
       case _ => // Unsupported RHS forms
         // No access to sourcePos here due to LazyTree
         report.error(