WebCore\DerivedSources\JSReadableStreamSource.cpp: warning: unused fu…

…nction 'jsReadableStreamSource_controller'

https://bugs.webkit.org/show_bug.cgi?id=260376

Reviewed by Fujii Hironori.

Emit UNUSED_PARAM for the attributeGetterName to prevent compiler
warning in clang-cl.

* Source/WebCore/bindings/scripts/CodeGeneratorJS.pm:
(GenerateAttributeGetterTrampolineDefinition):

Canonical link: https://commits.webkit.org/267420@main

Source/WTF/wtf/Compiler.h

@@ -393,7 +393,7 @@
 
 /* REFERENCED_FROM_ASM */
 
-#if !defined(REFERENCED_FROM_ASM) && COMPILER(GCC_COMPATIBLE)
+#if !defined(REFERENCED_FROM_ASM) && (COMPILER(GCC) || COMPILER(CLANG))
 #define REFERENCED_FROM_ASM __attribute__((__used__))
 #endif