[Interpreter] Enable runtime profiler support for Ignition.

src/deoptimizer.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/deoptimizer.h"
 
 #include "src/accessors.h"
 #include "src/ast/prettyprinter.h"
 #include "src/codegen.h"
 #include "src/disasm.h"
@@ skipping 1259 matching lines @@
   WriteValueToOutput(smi_bytecode_offset, 0, frame_index, output_offset,
                      "bytecode offset ");
 
   // Translate the rest of the interpreter registers in the frame.
   for (unsigned i = 0; i < height - 1; ++i) {
     output_offset -= kPointerSize;
     WriteTranslatedValueToOutput(&value_iterator, &input_index, frame_index,
                                  output_offset);
   }
 
-  // Set the accumulator. If we are lazy deopting to a catch handler,
-  // we set the accumulator to the exception (which lives in the result
-  // register).
+  // Put the accumulator on the stack. It will be popped by the
+  // InterpreterNotifyDeopt builtin (possibly after materialization).
   output_offset -= kPointerSize;
   if (goto_catch_handler) {
+    // If we are lazy deopting to a catch handler, we set the accumulator to
+    // the exception (which lives in the result register).
     intptr_t accumulator_value =
         input_->GetRegister(FullCodeGenerator::result_register().code());
     WriteValueToOutput(reinterpret_cast<Object*>(accumulator_value), 0,
                        frame_index, output_offset, "accumulator ");
     value_iterator++;
   } else {
     WriteTranslatedValueToOutput(&value_iterator, &input_index, frame_index,
                                  output_offset);
   }
   CHECK_EQ(0u, output_offset);
@@ skipping 2454 matching lines @@
       CHECK(value_info->IsMaterializedObject());
 
       value_info->value_ =
           Handle<Object>(previously_materialized_objects->get(i), isolate_);
     }
   }
 }
 
 }  // namespace internal
 }  // namespace v8