better method name

Author: staabm

src/Type/Regex/RegexGroupParser.php

@@ -110,7 +110,7 @@ public function parseGroups(string $regex): ?RegexAstWalkResult
 			RegexGroupWalkResult::createEmpty(),
 		);
 
-		if (!$subjectAsGroupResult->containsEmptyStringLiteral()) {
+		if (!$subjectAsGroupResult->mightContainEmptyStringLiteral()) {
 			// we could handle numeric-string, in case we know the regex is delimited by ^ and $
 			if ($subjectAsGroupResult->isNonFalsy()->yes()) {
 				$astWalkResult = $astWalkResult->withSubjectBaseType(

src/Type/Regex/RegexGroupWalkResult.php

@@ -103,7 +103,7 @@ public function getOnlyLiterals(): ?array
 		return $this->onlyLiterals;
 	}
 
-	public function containsEmptyStringLiteral(): bool
+	public function mightContainEmptyStringLiteral(): bool
 	{
 		if ($this->onlyLiterals === null) {
 			return false;