X87: Debugger: use debug break slots to break at function exit.

src/x87/assembler-x87.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 65 matching lines @@
   data_ = NextField::encode(next) | TypeField::encode(type);
 }
 
 
 // -----------------------------------------------------------------------------
 // Implementation of RelocInfo
 
 
 const int RelocInfo::kApplyMask =
     RelocInfo::kCodeTargetMask | 1 << RelocInfo::RUNTIME_ENTRY |
-    1 << RelocInfo::JS_RETURN | 1 << RelocInfo::INTERNAL_REFERENCE |
-    1 << RelocInfo::CODE_AGE_SEQUENCE | RelocInfo::kDebugBreakSlotMask;
+    1 << RelocInfo::INTERNAL_REFERENCE | 1 << RelocInfo::CODE_AGE_SEQUENCE |
+    RelocInfo::kDebugBreakSlotMask;
 
 
 bool RelocInfo::IsCodedSpecially() {
   // The deserializer needs to know whether a pointer is specially coded.  Being
   // specially coded on IA32 means that it is a relative address, as used by
   // branch instructions.  These are also the ones that need changing when a
   // code object moves.
   return (1 << rmode_) & kApplyMask;
 }
 
@@ skipping 2030 matching lines @@
     fflush(coverage_log);
   }
 }
 
 #endif
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X87