fixed tutor issues

pom.xml

@@ -145,7 +145,7 @@
 		<dependency>
 			<groupId>org.rascalmpl</groupId>
 			<artifactId>rascal</artifactId>
-			<version>0.34.0</version>
+			<version>0.35.0-RC8</version>
 		</dependency>
 		<dependency>
 			<groupId>org.rascalmpl</groupId>

src/analysis/grammars/dramb/Regression.rsc

@@ -30,7 +30,7 @@ If this function returns `false` then it's time to run ((drAmbiguity)) interacti
 * Use this as a `test` function in your own syntax project, and run it during continuous integration testing. 
 
 :::info
-It's best to use ((IO::findResources)) to locate the binary file that stores your drAmbiguity model.
+It's best to use IO::findResources to locate the binary file that stores your drAmbiguity model.
 :::
 }
 @pitfalls{

src/analysis/grammars/dramb/Simplify.rsc

@@ -18,7 +18,7 @@ Tree simplify(type[Tree] gr, Tree t, int effort=100) {
        return new;
      }
    }   
-   
+
    return t;
 }
 
@@ -50,7 +50,7 @@ Tree simplify(Tree t) {
        rand = arbInt(size(args));
 
        if (arbBool()) {
-          return appl(r, [args]);
+          return appl(r, args);
        }
 
        return appl(r, args[..rand*delta] + args[min(rand*(delta+1), size(args))..])[@\loc=a@\loc];