Get rid of dynamic call debug stub

runtime/vm/debugger_x64.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/debugger.h"
 
 #include "vm/assembler.h"
@@ skipping 33 matching lines @@
   const intptr_t index = (offset - Array::data_offset()) / kWordSize;
   const uword stub_address = reinterpret_cast<uword>(object_pool.At(index));
   ASSERT(stub_address % kWordSize == 0);
   return stub_address;
 }
 
 
 void CodeBreakpoint::PatchCode() {
   ASSERT(!is_enabled_);
   switch (breakpoint_kind_) {
-    case PcDescriptors::kIcCall: {
-      int32_t offset = CodePatcher::GetPoolOffsetAt(pc_);
-      ASSERT((offset > 0) && ((offset % 8) == 7));
-      saved_value_ = static_cast<uword>(offset);
-      const int32_t stub_offset =
-          InstructionPattern::OffsetFromPPIndex(
-              Assembler::kBreakpointDynamicCPIndex);
-      CodePatcher::SetPoolOffsetAt(pc_, stub_offset);
-      break;
-    }
+    case PcDescriptors::kIcCall:
     case PcDescriptors::kUnoptStaticCall:
     case PcDescriptors::kRuntimeCall:
     case PcDescriptors::kClosureCall:
     case PcDescriptors::kReturn: {
       int32_t offset = CodePatcher::GetPoolOffsetAt(pc_);
       ASSERT((offset > 0) && ((offset % 8) == 7));
       saved_value_ = static_cast<uword>(offset);
       const uint32_t stub_offset =
           InstructionPattern::OffsetFromPPIndex(
               Assembler::kBreakpointRuntimeCPIndex);
@@ skipping 21 matching lines @@
     default:
       UNREACHABLE();
   }
   is_enabled_ = false;
 }
 
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64