Fix define() before use statements breaking PHPDoc class resolution

- Removed !array_key_exists guard in FileTypeMapper::createPhpDocNodeMap() that prevented updating the name scope map entry after it was first set
- The first non-skipped statement (e.g. define()) would lock in an empty $uses array for that scope key, causing later PHPDocs to fail resolving class names from use statements
- New regression test in tests/PHPStan/Analyser/nsrt/bug-8950.php

Author: phpstan-bot

src/Type/FileTypeMapper.php

@@ -541,7 +541,7 @@ function (Node $node) use ($fileName, $lookForTrait, &$traitFound, $traitMethodA
 							&& !$node instanceof Node\Stmt\InlineHTML
 							&& !($node instanceof Node\Stmt\Expression && $node->expr instanceof Node\Expr\Include_)
 						)
-					) && !array_key_exists($nameScopeKey, $nameScopeMap)
+					)
 				) {
 					$parentNameScope = array_last($typeMapStack) ?? null;
 					$typeAliasesMap = array_last($typeAliasStack) ?? [];

tests/PHPStan/Analyser/nsrt/bug-8950.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Bug8950 {
+	interface FooInterface
+	{
+	}
+}
+
+namespace {
+
+	define('BUG_8950_FOO', 'foo');
+
+	use Bug8950\FooInterface;
+
+	/** @var FooInterface $foo */
+	$foo = null;
+
+	\PHPStan\Testing\assertType('Bug8950\FooInterface', $foo);
+}