Revert of Decompiler improvements.

src/disassembler.cc

Index: src/disassembler.cc
diff --git a/src/disassembler.cc b/src/disassembler.cc
index 68c1ca1a7f3d11a02bfe94b6b5f8e40c4c6ee2a2..9ec2f42377ba7de4b2f090d5855811ce1641ac12 100644
--- a/src/disassembler.cc
+++ b/src/disassembler.cc
@@ -43,7 +43,7 @@
     int offs = static_cast<int>(pc - code_->instruction_start());
     // print as code offset, if it seems reasonable
     if (0 <= offs && offs < code_->instruction_size()) {
-      SNPrintF(v8_buffer_, "%x  (%p)", offs, pc);
+      SNPrintF(v8_buffer_, "%d  (%p)", offs, pc);
       return v8_buffer_.start();
     }
   }
@@ -146,7 +146,7 @@
     }
 
     // Instruction address and instruction offset.
-    out.AddFormatted("%p  %4x  ", prev_pc, prev_pc - begin);
+    out.AddFormatted("%p  %4d  ", prev_pc, prev_pc - begin);
 
     // Instruction.
     out.AddFormatted("%s", decode_buffer.start());