Debugger: use debug break slot to break on call.

src/disassembler.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/code-stubs.h"
 #include "src/codegen.h"
 #include "src/debug.h"
 #include "src/deoptimizer.h"
@@ skipping 198 matching lines @@
             out.AddFormatted(", %s", Code::StubType2String(type));
           }
         } else if (kind == Code::STUB || kind == Code::HANDLER) {
           // Get the STUB key and extract major and minor key.
           uint32_t key = code->stub_key();
           uint32_t minor_key = CodeStub::MinorKeyFromKey(key);
           CodeStub::Major major_key = CodeStub::GetMajorKey(code);
           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));
         }
         if (rmode == RelocInfo::CODE_TARGET_WITH_ID) {
           out.AddFormatted(" (id = %d)", static_cast<int>(relocinfo.data()));
         }
       } else if (RelocInfo::IsRuntimeEntry(rmode) &&
                  isolate->deoptimizer_data() != NULL) {
         // A runtime entry reloinfo might be a deoptimization bailout.
         Address addr = relocinfo.target_address();
@@ skipping 52 matching lines @@
 
 int Disassembler::Decode(Isolate* isolate, std::ostream* os, byte* begin,
                          byte* end, Code* code) {
   return 0;
 }
 
 #endif  // ENABLE_DISASSEMBLER
 
 }  // namespace internal
 }  // namespace v8