Fix issue 825 (LiveEdit vs. function with no locals) for x64.

src/ia32/debug-ia32.cc

 // 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 157 matching lines @@
       if (!taken) {
         unused_reg = reg;
       }
     }
 
     ASSERT(unused_reg.code() != -1);
 
     // Read current padding counter and skip corresponding number of words.
     __ pop(unused_reg);
     // We divide stored value by 2 (untagging) and multiply it by word's size.
-    STATIC_ASSERT(kSmiTagSize == 1);
+    STATIC_ASSERT(kSmiTagSize == 1 && kSmiShiftSize == 0);
     __ lea(esp, Operand(esp, unused_reg, times_half_pointer_size, 0));
 
     // Get rid of the internal frame.
   }
 
   // If this call did not replace a call but patched other code then there will
   // be an unwanted return address left on the stack. Here we get rid of that.
   if (convert_call_to_jmp) {
     __ add(esp, Immediate(kPointerSize));
   }
@@ skipping 164 matching lines @@
 
 const bool Debug::kFrameDropperSupported = true;
 
 #undef __
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32