Debugger: use debug break slot to break on call.

src/disassembler.cc

Index: src/disassembler.cc
diff --git a/src/disassembler.cc b/src/disassembler.cc
index 47e506d1127ef03adc42f26ceb647ced2061c4a2..06eb2397eb8d0ecf6278634f5448206c854055a2 100644
--- a/src/disassembler.cc
+++ b/src/disassembler.cc
@@ -216,15 +216,7 @@ static int DecodeIt(Isolate* isolate, std::ostream* os,
           DCHECK(major_key == CodeStub::MajorKeyFromKey(key));
           out.AddFormatted(" %s, %s, ", Code::Kind2String(kind),
                            CodeStub::MajorName(major_key, false));
-          switch (major_key) {
-            case CodeStub::CallFunction: {
-              int argc = CallFunctionStub::ExtractArgcFromMinorKey(minor_key);
-              out.AddFormatted("argc = %d", argc);
-              break;
-            }
-            default:
-              out.AddFormatted("minor: %d", minor_key);
-          }
+          out.AddFormatted("minor: %d", minor_key);
         } else {
           out.AddFormatted(" %s", Code::Kind2String(kind));
         }