Optimize path related utils on windows

Author: staabm

src/File/FileHelper.php

@@ -10,6 +10,7 @@
 use function rtrim;
 use function str_replace;
 use function str_starts_with;
+use function strlen;
 use function strpos;
 use function substr;
 use function trim;
@@ -52,7 +53,14 @@ public function absolutizePath(string $path): string
 	/** @api */
 	public function normalizePath(string $originalPath, string $directorySeparator = DIRECTORY_SEPARATOR): string
 	{
-		$isLocalPath = $originalPath !== '' && $originalPath[0] === '/';
+		$isLocalPath = false;
+		if ($originalPath !== '') {
+			if ($originalPath[0] === '/') {
+				$isLocalPath = true;
+			} elseif (strlen($originalPath) >= 3 && $originalPath[1] === ':' && $originalPath[2] === '\\') { // e.g. C:\
+				$isLocalPath = true;
+			}
+		}
 
 		$matches = null;
 		if (!$isLocalPath) {

src/Type/FileTypeMapper.php

@@ -76,10 +76,6 @@ public function getResolvedPhpDoc(
 		string $docComment,
 	): ResolvedPhpDocBlock
 	{
-		if ($fileName !== null) {
-			$fileName = $this->fileHelper->normalizePath($fileName);
-		}
-
 		if ($className === null && $traitName !== null) {
 			throw new ShouldNotHappenException();
 		}
@@ -88,6 +84,10 @@ public function getResolvedPhpDoc(
 			return ResolvedPhpDocBlock::createEmpty();
 		}
 
+		if ($fileName !== null) {
+			$fileName = $this->fileHelper->normalizePath($fileName);
+		}
+
 		$nameScopeKey = $this->getNameScopeKey($fileName, $className, $traitName, $functionName);
 		$phpDocKey = md5(sprintf('%s-%s', $nameScopeKey, $docComment));
 		if (isset($this->resolvedPhpDocBlockCache[$phpDocKey])) {