Fix compilation error in debug build for IA-32 and ARM.

src/arm/fast-codegen-arm.cc

Index: src/arm/fast-codegen-arm.cc
===================================================================
--- src/arm/fast-codegen-arm.cc	(revision 3213)
+++ src/arm/fast-codegen-arm.cc	(working copy)
@@ -130,7 +130,6 @@
     int num_parameters = function_->scope()->num_parameters();
     __ add(sp, sp, Operand((num_parameters + 1) * kPointerSize));
     __ Jump(lr);
-  }
 #ifdef DEBUG
   // Check that the size of the code used for returning matches what is
   // expected by the debugger. The add instruction above is an addressing
@@ -147,6 +146,7 @@
   ASSERT_EQ(expected_return_sequence_length,
             masm_->InstructionsGeneratedSince(&check_exit_codesize));
 #endif
+  }
 }