[debugger] Explicitly encode calls from %ScheduleBreak as 'other'

This CL forwards the information that we are breaking because
of a ScheduleBreak runtime call.

Bug: chromium:1229541, chromium:1133307
Change-Id: I5eb9462c9df135bc3b3080c354e61e301d24e1ff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3310804
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Kim-Anh Tran <kimanh@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78223}

src/debug/debug-interface.h

@@ -126,7 +126,8 @@ enum class BreakReason : uint8_t {
   kException,
   kAssert,
   kDebuggerStatement,
-  kOOM
+  kOOM,
+  kScheduled
 };
 typedef base::EnumSet<BreakReason> BreakReasons;
 

src/inspector/v8-debugger-agent-impl.cc

@@ -1827,7 +1827,8 @@ void V8DebuggerAgentImpl::didPause(
   const bool otherBreakReasons =
       hitRegularBreakpoint ||
       breakReasons.contains(v8::debug::BreakReason::kStep) ||
-      breakReasons.contains(v8::debug::BreakReason::kDebuggerStatement);
+      breakReasons.contains(v8::debug::BreakReason::kDebuggerStatement) ||
+      breakReasons.contains(v8::debug::BreakReason::kScheduled);
   if (otherBreakReasons && std::find(hitReasons.begin(), hitReasons.end(),
                                      otherHitReason) == hitReasons.end()) {
     hitReasons.push_back(

src/runtime/runtime-debug.cc

@@ -148,7 +148,11 @@ RUNTIME_FUNCTION(Runtime_ScheduleBreak) {
   SealHandleScope shs(isolate);
   DCHECK_EQ(0, args.length());
   isolate->RequestInterrupt(
-      [](v8::Isolate* isolate, void*) { v8::debug::BreakRightNow(isolate); },
+      [](v8::Isolate* isolate, void*) {
+        v8::debug::BreakRightNow(
+            isolate,
+            v8::debug::BreakReasons({v8::debug::BreakReason::kScheduled}));
+      },
       nullptr);
   return ReadOnlyRoots(isolate).undefined_value();
 }