[Php85] Clean up dynamic expr check on NestedToPipeOperatorRector (#7578)

Author: samsonasik

rules/Php85/Rector/StmtsAwareInterface/NestedToPipeOperatorRector.php

@@ -9,13 +9,8 @@
 use PhpParser\Node\Expr;
 use PhpParser\Node\Expr\Assign;
 use PhpParser\Node\Expr\BinaryOp\Pipe;
-use PhpParser\Node\Expr\Cast\Array_;
-use PhpParser\Node\Expr\Cast\String_;
-use PhpParser\Node\Expr\ConstFetch;
 use PhpParser\Node\Expr\FuncCall;
 use PhpParser\Node\Expr\Variable;
-use PhpParser\Node\Scalar\Float_;
-use PhpParser\Node\Scalar\Int_;
 use PhpParser\Node\Stmt;
 use PhpParser\Node\Stmt\Expression;
 use PhpParser\Node\VariadicPlaceholder;
@@ -161,7 +156,7 @@ private function findAssignmentChain(array $statements, int $startIndex): ?array
             if ($currentIndex === $startIndex) {
 
                 // First in chain - must be a variable or simple value
-                if (! $arg->value instanceof Variable && ! $this->isSimpleValue($arg->value)) {
+                if (! $arg->value instanceof Variable && ! $this->exprAnalyzer->isDynamicExpr($arg->value)) {
                     return null;
                 }
 
@@ -192,18 +187,6 @@ private function findAssignmentChain(array $statements, int $startIndex): ?array
         return $chain;
     }
 
-    private function isSimpleValue(Expr $expr): bool
-    {
-        if ($expr instanceof Array_) {
-            return ! $this->exprAnalyzer->isDynamicExpr($expr);
-        }
-
-        return $expr instanceof ConstFetch
-            || $expr instanceof String_
-            || $expr instanceof Float_
-            || $expr instanceof Int_;
-    }
-
     /**
      * @param array<int, array{stmt: Stmt, assign: Expr, funcCall: Expr\FuncCall}> $chain
      */