fix symbol index bug

compiler/parser/src/parser/expression.rs

@@ -226,11 +226,11 @@ impl ParserContext<'_> {
             // Check if the method exists.
             let index = method.as_u32();
 
-            if index <= 2  {
+            if index <= 1  {
                 // Binary operators.
                 let operator = match index {
-                    1 => BinaryOperation::Add,
-                    2 => BinaryOperation::AddWrapped,
+                    0 => BinaryOperation::Add,
+                    1 => BinaryOperation::AddWrapped,
                     _ => unimplemented!("throw error for invalid method call")
                 };
 

examples/hello-world/src/main.leo

@@ -1,3 +1,3 @@
 function main(a: u8, b: u8) -> u8 {
-    return a.add(b);
+    return a.add_wrapped(b);
 }

leo/span/src/symbol.rs

@@ -104,7 +104,7 @@ symbols! {
 
     // binary operators
     add,
-    add_w,
+    add_wrapped,
 
     // arity three operators