[StandaloneLineConstructorParamFixer] Ignore constructor without arguments (#32)

* Add failing test for StandaloneLineConstructorParamFixer

When you have a constructor without arguments, the fixer changes it to:

```diff
-protected function __construct() {
+protected function __construct(
+) {
```

Not sure how to solve this.

* Ignore when function has no arguments

Author: ruudk

src/TokenRunner/Analyzer/FixerAnalyzer/BlockFinder.php

@@ -61,6 +61,17 @@ public function findInTokensByEdge(Tokens $tokens, int $position): ?BlockInfo
             if ($token->equals(';')) {
                 return null;
             }
+
+            if ($position !== null && $token->equals('(')) {
+                $closingPosition = $tokens->getNextMeaningfulToken($position);
+                if ($closingPosition !== null) {
+                    $closingToken = $tokens[$closingPosition];
+                    if ($closingToken->equals(')')) {
+                        // function has no arguments
+                        return null;
+                    }
+                }
+            }
         }
 
         // some invalid code

tests/Fixer/Spacing/StandaloneLineConstructorParamFixer/Fixture/empty_constructor.php.inc

@@ -0,0 +1,13 @@
+<?php
+
+namespace Symplify\CodingStandard\Tests\Fixer\Spacing\StandaloneLineConstructorParamFixer\Fixture;
+
+final class EmptyConstructor
+{
+    public function __construct()
+    {
+        echo "Hello, World!";
+    }
+}
+
+?>