X64: Move some methods in x64/ to their file and make codegen do int3.

src/x64/debug-x64.cc

Index: src/x64/debug-x64.cc
diff --git a/src/x64/debug-x64.cc b/src/x64/debug-x64.cc
index 209aa2d3070e48da7890e9457e64fe4718cfd782..6ab80cdb855bfa7681f3d38ad139e7edba5ae042 100644
--- a/src/x64/debug-x64.cc
+++ b/src/x64/debug-x64.cc
@@ -25,3 +25,58 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+
+#include "v8.h"
+
+#include "codegen-inl.h"
+#include "debug.h"
+
+
+namespace v8 { namespace internal {
+
+#ifdef ENABLE_DEBUGGER_SUPPORT
+
+bool Debug::IsDebugBreakAtReturn(v8::internal::RelocInfo* rinfo) {
+  UNIMPLEMENTED();
+  return false;
+}
+
+void Debug::GenerateCallICDebugBreak(MacroAssembler* masm) {
+  masm->int3();  // UNIMPLEMENTED
+}
+
+void Debug::GenerateConstructCallDebugBreak(MacroAssembler* masm) {
+  masm->int3();  // UNIMPLEMENTED
+}
+
+void Debug::GenerateKeyedLoadICDebugBreak(MacroAssembler* masm) {
+  masm->int3();  // UNIMPLEMENTED
+}
+
+void Debug::GenerateKeyedStoreICDebugBreak(MacroAssembler* masm) {
+  masm->int3();  // UNIMPLEMENTED
+}
+
+void Debug::GenerateLoadICDebugBreak(MacroAssembler* masm) {
+  masm->int3();  // UNIMPLEMENTED
+}
+
+void Debug::GenerateReturnDebugBreak(MacroAssembler* masm) {
+  masm->int3();  // UNIMPLEMENTED
+}
+
+void Debug::GenerateReturnDebugBreakEntry(MacroAssembler* masm) {
+  masm->int3();  // UNIMPLEMENTED
+}
+
+void Debug::GenerateStoreICDebugBreak(MacroAssembler* masm) {
+  masm->int3();  // UNIMPLEMENTED
+}
+
+void Debug::GenerateStubNoRegistersDebugBreak(MacroAssembler* masm) {
+  masm->int3();  // UNIMPLEMENTED
+}
+
+#endif  // ENABLE_DEBUGGER_SUPPORT
+
+} }  // namespace v8::internal