fix: don't add unnecessary noop

Author: alexander-akait

src/ast.js

@@ -323,18 +323,15 @@ AST.prototype.resolvePrecedence = function(result, parser) {
         result = buffer;
       }
     }
-  } else if (
-    result.kind === "silent" &&
-    !result.expr.parenthesizedExpression
-  ) {
-    if (result.expr.kind === 'assign') return result;
+  } else if (result.kind === "silent" && !result.expr.parenthesizedExpression) {
+    if (result.expr.kind === "assign") return result;
     // overall least precedence
     if (result.expr.right) {
       buffer = result.expr;
       result.expr = buffer.left;
       buffer.left = result;
       this.swapLocations(buffer, buffer.left, buffer.right, parser);
-      result = buffer;  
+      result = buffer;
     }
   }
   return result;

src/parser/array.js

@@ -64,10 +64,12 @@ module.exports = {
    */
   read_array_pair: function(shortForm) {
     if (
-      this.token === "," ||
       (!shortForm && this.token === ")") ||
       (shortForm && this.token === "]")
     ) {
+      return;
+    }
+    if (this.token === ",") {
       return this.node("noop")();
     }
     if (this.token === "&") {

src/parser/utils.js

@@ -40,7 +40,6 @@ module.exports = {
         break;
       }
       if (this.next().token == ")" && this.php73) {
-        result.push(this.node("noop")());
         break;
       }
     } while (this.token != this.EOF);
@@ -65,7 +64,10 @@ module.exports = {
 
     if (typeof item === "function") {
       do {
-        result.push(item.apply(this, []));
+        const itemResult = item.apply(this, []);
+        if (itemResult) {
+          result.push(itemResult);
+        }
         if (this.token != separator) {
           break;
         }