optional semicolon between toplevel statements

Author: anandrav

abra_core/src/parse.rs

@@ -24,6 +24,10 @@ pub(crate) fn parse_file(ctx: &mut StaticsContext, file_id: FileId) -> Rc<FileAs
         match parser.parse_item() {
             Ok(item) => {
                 items.push(item);
+                // optional semicolon between toplevel statements (and items in general)
+                if parser.current_token().tag() == TokenTag::Semicolon {
+                    parser.consume_token();
+                }
             }
             Err(e) => {
                 // flush errors

abra_core/tests/integration/e2e_bytecode.rs

@@ -16,8 +16,7 @@ fn arithmetic() {
 fn sub(x, y) {
   x - y
 }
-let x = 3
-let y = 4
+let x = 3; let y = 4
 let z = sub(x, y)
 let h = sub(z, 1)
 h