Add missing ConstantPoolUnavailableScopes on JS return.

src/arm/full-codegen-arm.cc

 // Copyright 2012 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/v8.h"
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 430 matching lines @@
 #endif
     // Make sure that the constant pool is not emitted inside of the return
     // sequence.
     { Assembler::BlockConstPoolScope block_const_pool(masm_);
       int32_t sp_delta = (info_->scope()->num_parameters() + 1) * kPointerSize;
       CodeGenerator::RecordPositions(masm_, function()->end_position() - 1);
       // TODO(svenpanne) The code below is sometimes 4 words, sometimes 5!
       PredictableCodeSizeScope predictable(masm_, -1);
       __ RecordJSReturn();
       int no_frame_start = __ LeaveFrame(StackFrame::JAVA_SCRIPT);
-      __ add(sp, sp, Operand(sp_delta));
-      __ Jump(lr);
-      info_->AddNoFrameRange(no_frame_start, masm_->pc_offset());
+      { ConstantPoolUnavailableScope constant_pool_unavailable(masm_);
+        __ add(sp, sp, Operand(sp_delta));
+        __ Jump(lr);
+        info_->AddNoFrameRange(no_frame_start, masm_->pc_offset());
+      }
     }
 
 #ifdef DEBUG
     // Check that the size of the code used for returning is large enough
     // for the debugger's requirements.
     DCHECK(Assembler::kJSReturnSequenceInstructions <=
            masm_->InstructionsGeneratedSince(&check_exit_codesize));
 #endif
   }
 }
@@ skipping 4417 matching lines @@
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OsrAfterStackCheck()->entry());
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM