[debugger] fix break locations for assignments and return.

test/mjsunit/mjsunit.status

 # Copyright 2012 the V8 project authors. 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.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 771 matching lines @@
   'regress/debug*': [SKIP],
   'regress/regress-debug*': [SKIP],
 
   # TODO(yangguo,4690): assertion failures in debugger tests.
   'debug-allscopes-on-debugger': [FAIL],
   'debug-liveedit-restart-frame': [FAIL],
   'debug-return-value': [FAIL],
   'debug-liveedit-literals': [FAIL],
   'debug-liveedit-3': [FAIL],
   'debug-liveedit-1': [FAIL],
-  'debug-step-into-json': [FAIL],
   'debug-liveedit-patch-positions-replace': [FAIL],
-  'debug-step-into-valueof': [FAIL],
   'debug-liveedit-patch-positions': [FAIL],
   'debug-liveedit-stepin': [FAIL],
-  'debug-step-4': [FAIL],
   'debug-liveedit-newsource': [FAIL],
   'debug-liveedit-stack-padding': [FAIL],
   'debug-stepframe': [FAIL],
-  'debug-negative-break-points': [FAIL],
-  'debug-stepin-accessor': [FAIL],
-  'debug-step-stub-callfunction': [FAIL],
   'debug-liveedit-breakpoints': [FAIL],
   'debug-stepin-accessor-ic': [FAIL],
-  'debug-stepin-builtin': [FAIL],
-  'debug-stepin-foreach': [FAIL],
   'debug-stepnext-do-while': [FAIL],
-  'debug-stepin-builtin-callback-opt': [FAIL],
-  'debug-stepin-function-call': [FAIL],
 
   # TODO(yangguo,4690): Check failure in debug.cc BreakLocation::SetBreakPoint
   # DCHECK(IsDebugBreak() || IsDebuggerStatement());
   'regress/regress-1523': [FAIL],
-  'regress/regress-102153': [FAIL],
-  'regress/regress-2825': [FAIL],
   'regress/regress-crbug-119800': [FAIL],
   'regress/regress-crbug-467180': [FAIL],
   'regress/regress-opt-after-debug-deopt': [FAIL],
 
   # TODO(rmcilroy,4681): Requires support for generators.
   'messages': [FAIL],
   'es6/array-from': [FAIL],
   'regress-3225': [FAIL],
   'es6/classes-subclass-builtins': [FAIL],
   'es6/computed-property-names-classes': [FAIL],
@@ skipping 38 matching lines @@
   # TODO(rmcilroy,4680): Test assert failures.
   'array-literal-feedback': [FAIL],
   'debug-liveedit-2': [FAIL],
   'es6/mirror-collections': [FAIL],
   'es6/regress/regress-468661': [FAIL],
   'regress/regress-2618': [FAIL],
   'regress/regress-4121': [FAIL],
   'regress/regress-4266': [FAIL],
   'regress/regress-crbug-109362': [FAIL],
   'regress/regress-crbug-568477-2': [FAIL],
-  'regress/regress-crbug-568477-3': [FAIL],
-  'regress/regress-crbug-568477-1': [FAIL],
 
   # TODO(rmcilroy, 4680): new ES6 instanceof support
   'harmony/instanceof-es6': [SKIP],
 
   # TODO(rmcilroy,4680): Test timeouts.
   'array-literal-transitions': [SKIP],
   'regress/regress-crbug-517592': [SKIP],
   'regress/regress-crbug-568477-4': [SKIP],
   'regress/regress-crbug-409614': [SKIP],
   'regress/regress-crbug-42414': [SKIP],
@@ skipping 26 matching lines @@
   # Tests taking too long.
   'array-functions-prototype-misc': [SKIP],
   'strong/implicit-conversions': [SKIP],
   'strong/load-element-mutate-backing-store': [SKIP],
 
   # Stack overflow.
   'big-array-literal': [SKIP],
 }],  # 'gcov_coverage'
 
 ]