File::getDeclarationName(): replace condition with comment

Author: jrfnl

src/Files/File.php

@@ -1305,9 +1305,11 @@ public function getDeclarationName($stackPtr)
         }
 
         $stopPoint = $this->numTokens;
-        if ($tokenCode === T_FUNCTION && isset($this->tokens[$stackPtr]['parenthesis_opener']) === true) {
+        if (isset($this->tokens[$stackPtr]['parenthesis_opener']) === true) {
+            // For functions, stop searching at the parenthesis opener.
             $stopPoint = $this->tokens[$stackPtr]['parenthesis_opener'];
         } else if (isset($this->tokens[$stackPtr]['scope_opener']) === true) {
+            // For OO tokens, stop searching at the open curly.
             $stopPoint = $this->tokens[$stackPtr]['scope_opener'];
         }