[DeadCode][WIP] Fixes #4925 Add RemoveDeadConditionAboveReturnRector

rules/dead-code/src/Rector/Return_/RemoveDeadConditionAboveReturnRector.php

@@ -0,0 +1,65 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\DeadCode\Rector\Return_;
+
+use PhpParser\Node;
+use PhpParser\Node\Stmt\Return_;
+use PHPStan\Type\Constant\ConstantBooleanType;
+use Rector\Core\Rector\AbstractRector;
+use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
+use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
+
+/**
+ * @see \Rector\DeadCode\Tests\Rector\Return_\RemoveDeadConditionAboveReturnRector\RemoveDeadConditionAboveReturnRectorTest
+ */
+final class RemoveDeadConditionAboveReturnRector extends AbstractRector
+{
+    public function getRuleDefinition(): RuleDefinition
+    {
+        return new RuleDefinition('Remove dead condition above return', [
+            new CodeSample(
+                <<<'CODE_SAMPLE'
+final class SomeClass
+{
+    public function go()
+    {
+        if (1 === 1) {
+            return 'yes';
+        }
+
+        return 'yes';
+    }
+}
+CODE_SAMPLE
+                ,
+                <<<'CODE_SAMPLE'
+final class SomeClass
+{
+    public function go()
+    {
+        return 'yes';
+    }
+}
+CODE_SAMPLE
+            ),
+        ]);
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getNodeTypes(): array
+    {
+        return [Return_::class];
+    }
+
+    /**
+     * @param Return_ $node
+     */
+    public function refactor(Node $node): ?Node
+    {
+        return $node;
+    }
+}