Correct two comments of the range() return type extension

A numeric string keeps its value in the float path before PHP 8.3, and
without the returned items a string boundary is generalized rather than
following PHP 8.3.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

Author: zonuexe

src/Type/Php/RangeFunctionReturnTypeExtension.php

@@ -252,7 +252,7 @@ private static function getLongRangeType(
 		}
 
 		// before PHP 8.3 a float argument produced floats even when none of the arguments had a fractional
-		// part, and even for two strings, which then counted as 0
+		// part, and even for two strings, of which only a numeric one kept its value
 		$floatListType = self::getNonEmptyListOfType(new FloatType());
 		if ($hasStricterRange->no()) {
 			return $floatListType;
@@ -262,7 +262,8 @@ private static function getLongRangeType(
 	}
 
 	/**
-	 * The type of the items the runtime returned, or without them what PHP 8.3 returns.
+	 * The type of the items the runtime returned. Without them it follows PHP 8.3 for numeric
+	 * boundaries and generalizes the arguments for a string one.
 	 *
 	 * @param non-empty-list<int|float|string>|null $rangeValues
 	 */