Add asserts to ensure that we:

src/mips/full-codegen-mips.cc

 // Copyright 2011 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 144 matching lines @@
   // function calls.
   if (info->is_strict_mode() || info->is_native()) {
     Label ok;
     __ Branch(&ok, eq, t1, Operand(zero_reg));
     int receiver_offset = info->scope()->num_parameters() * kPointerSize;
     __ LoadRoot(a2, Heap::kUndefinedValueRootIndex);
     __ sw(a2, MemOperand(sp, receiver_offset));
     __ bind(&ok);
   }
 
+  // Open a frame scope to indicate that there is a frame on the stack.  The
+  // MANUAL indicates that the scope shouldn't actually generate code to set up
+  // the frame (that is done below).
+  FrameScope frame_scope(masm_, StackFrame::MANUAL);
+
   int locals_count = info->scope()->num_stack_slots();
 
   __ Push(ra, fp, cp, a1);
   if (locals_count > 0) {
     // Load undefined value here, so the value is ready for the loop
     // below.
     __ LoadRoot(at, Heap::kUndefinedValueRootIndex);
   }
   // Adjust fp to point to caller's fp.
   __ Addu(fp, sp, Operand(2 * kPointerSize));
@@ skipping 4068 matching lines @@
   *context_length = 0;
   return previous_;
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS