Unify runtime-style IC functions with Runtime intrinsics

src/runtime/runtime-debug.cc

Index: src/runtime/runtime-debug.cc
diff --git a/src/runtime/runtime-debug.cc b/src/runtime/runtime-debug.cc
index f4c81c8c72b5ff499e66276462245f70e7acadb2..a28e9f43f6df4d9f6e944b32f0ca38f90dcde735 100644
--- a/src/runtime/runtime-debug.cc
+++ b/src/runtime/runtime-debug.cc
@@ -17,6 +17,15 @@ namespace v8 {
 namespace internal {
 
 RUNTIME_FUNCTION(Runtime_DebugBreak) {

[Michael Starzinger, 2015/07/23 11:36:15]

nit: Can we add the following boilerplate to the top of the function?

   SealHandleScope shs(isolate);
   DCHECK(args.length() == 0);

[danno, 2015/07/23 11:50:22]

Done.

+  // Get the top-most JavaScript frame.
+  JavaScriptFrameIterator it(isolate);
+  isolate->debug()->Break(args, it.frame());
+  isolate->debug()->SetAfterBreakTarget(it.frame());
+  return isolate->heap()->undefined_value();
+}
+
+
+RUNTIME_FUNCTION(Runtime_HandleDebuggerStatement) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 0);
   isolate->debug()->HandleDebugBreak();