Upstream and some refactoring

Note: Maybe this doesn't compile, ij is broken af smh, let's give it a try...

worldedit-core/src/test/java/com/sk89q/worldedit/internal/expression/ExpressionTest.java

@@ -91,7 +91,6 @@ class ExpressionTest extends BaseExpressionTest {
         {
             ExpressionException e = assertThrows(ExpressionException.class,
                 () -> compile("rotate(1, 2, 3)"));
-            e.printStackTrace();
             assertEquals(7, e.getPosition(), "Error position");
         }