Ignoring IntelliJ files and test warnings.

.gitignore

@@ -10,3 +10,6 @@
 /relast-compiler.jar
 /src/generated/
 /.gradle
+
+/.idea/
+*.iml

tests/valid/All.java

 import AST.*;
 import java.util.*;
 
+@SuppressWarnings("ArraysAsListWithZeroOrOneArgument")
 public class All extends AbstractTests {
 	private Root r;
 	private A a1;