[ignition, debugger] correctly set position for return with elided bytecode.

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 789 matching lines @@
   # objects.
   'es6/mirror-collections': [FAIL],
 
   # TODO(mythria, 4680): line numbers in eval test. Coloumn number is
   # incorrect.
   'regress/regress-crbug-109362': [FAIL],
 
   # TODO(mythria, 4680): possibly problem with line numbers.
   'es6/regress/regress-468661': [FAIL],
 
+  # Debugger test cases that pass with ignition, but not full-codegen.
+  # These differences between full-codegen and ignition are deliberate.
+  'ignition/elided-instruction-no-ignition': [FAIL],
 }],  # ignition == True
 
 ['ignition == True and arch == arm64', {
   # TODO(rmcilroy,4680): Arm64 specific timeouts.
   'asm/construct-double': [SKIP],
   'compiler/osr-one': [SKIP],
   'compiler/osr-two': [SKIP],
 }],  # ignition == True and arch == arm64
 
 ['ignition == True and arch == arm', {
   # TODO(rmcilroy,4680): Arm specific timeouts.
   'compiler/osr-one': [SKIP],
   'compiler/osr-two': [SKIP],
   'regress/regress-1257': [SKIP],
 }],  # ignition == True and arch == arm
 
+['ignition == False', {
+  # Debugger test cases that pass with full-codegen, but not ignition.
+  # These differences between full-codegen and ignition are deliberate.
+  'ignition/elided-instruction': [FAIL],
+}],  # ignition == False
+
 ##############################################################################
 ['gcov_coverage', {
   # Tests taking too long.
   'array-functions-prototype-misc': [SKIP],
 
   # Stack overflow.
   'big-array-literal': [SKIP],
 }],  # 'gcov_coverage'
 
 ]