[no-wasm] Fix build

This fixes a compile error after https://crrev.com/c/2715193.

TBR=bmeurer@chromium.org

Bug: v8:11238
Change-Id: I0b063fab4c00263b05af057534a9093ad0ddbf7d
Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2739635Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Eric Leese <leese@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73229}

src/inspector/value-mirror.cc

@@ -305,12 +305,14 @@ String16 descriptionForCollection(v8::Isolate* isolate,
   return String16::concat(className, '(', String16::fromInteger(length), ')');
 }
 
+#if V8_ENABLE_WEBASSEMBLY
 String16 descriptionForWasmValueObject(
     v8::Local<v8::Context> context,
     v8::Local<v8::debug::WasmValueObject> object) {
   v8::Isolate* isolate = context->GetIsolate();
   return toProtocolString(isolate, object->type());
 }
+#endif  // V8_ENABLE_WEBASSEMBLY
 
 String16 descriptionForEntry(v8::Local<v8::Context> context,
                              v8::Local<v8::Object> object) {