[api] Add warning comment about changing FatalProcessOutOfMemory

The signature of FatalProcessOutOfMemory is used extracting V8 specific
crash information from chrome minidumps.

Change-Id: I625a9ca1f1628c6ddd34cf794cc4205b012ef23e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3532267
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79650}

src/init/v8.h

@@ -24,6 +24,8 @@ class V8 : public AllStatic {
 
   // Report process out of memory. Implementation found in api.cc.
   // This function will not return, but will terminate the execution.
+  // IMPORTANT: Update the Google-internal crash processer if this signature
+  // changes to be able to extract detailed v8::internal::HeapStats on OOM.
   [[noreturn]] static void FatalProcessOutOfMemory(Isolate* isolate,
                                                    const char* location,
                                                    bool is_heap_oom = false);