Remove unused pc descriptor types.

runtime/vm/stub_code_ia32.cc

 // Copyright (c) 2013, 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_IA32)
 
 #include "vm/assembler.h"
 #include "vm/compiler.h"
 #include "vm/dart_entry.h"
@@ skipping 1694 matching lines @@
       Immediate(reinterpret_cast<intptr_t>(Object::null()));
   __ pushl(raw_null);  // Room for result.
   __ CallRuntime(kBreakpointRuntimeHandlerRuntimeEntry, 0);
   __ popl(EAX);  // Address of original stub.
   __ popl(ECX);  // Restore IC data.
   __ LeaveFrame();
   __ jmp(EAX);   // Jump to original stub.
 }
 
 
-// ECX: Contains Smi 0 (need to preserve a GC-safe value for the lazy compile
-// stub).
-// EDX: Contains an arguments descriptor.
-void StubCode::GenerateClosureCallBreakpointStub(Assembler* assembler) {
-  __ EnterStubFrame();
-  // Save arguments to original stub.
-  __ pushl(ECX);
-  __ pushl(EDX);
-  // Room for result. Debugger stub returns address of the
-  // unpatched runtime stub.
-  const Immediate& raw_null =
-      Immediate(reinterpret_cast<intptr_t>(Object::null()));
-  __ pushl(raw_null);  // Room for result.
-  __ CallRuntime(kBreakpointRuntimeHandlerRuntimeEntry, 0);
-  __ popl(EAX);  // Address of original stub.
-  __ popl(EDX);  // Restore arguments to original stub.
-  __ popl(ECX);
-  __ LeaveFrame();
-  __ jmp(EAX);   // Jump to original stub.
-}
-
-
 void StubCode::GenerateRuntimeCallBreakpointStub(Assembler* assembler) {
   __ EnterStubFrame();
   // Room for result. Debugger stub returns address of the
   // unpatched runtime stub.
   const Immediate& raw_null =
       Immediate(reinterpret_cast<intptr_t>(Object::null()));
   __ pushl(raw_null);  // Room for result.
   __ CallRuntime(kBreakpointRuntimeHandlerRuntimeEntry, 0);
   __ popl(EAX);  // Address of original stub.
   __ LeaveFrame();
@@ skipping 361 matching lines @@
 //  EBX: entry point.
 void StubCode::GenerateMegamorphicLookupStub(Assembler* assembler) {
   EmitMegamorphicLookup(assembler, EDI, EBX, EBX);
   __ ret();
 }
 
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32