[wasm] Disassemble wasm code from script

src/wasm/ast-decoder.cc

Index: src/wasm/ast-decoder.cc
diff --git a/src/wasm/ast-decoder.cc b/src/wasm/ast-decoder.cc
index 4f8510a711e30fb1365fd27062585d5149566ae4..b0d966e0c8c1b6688c510d89498084c5c009c423 100644
--- a/src/wasm/ast-decoder.cc
+++ b/src/wasm/ast-decoder.cc
@@ -1576,6 +1576,7 @@ bool PrintAst(base::AccountingAllocator* allocator, const FunctionBody& body,
       os << " " << count << " " << WasmOpcodes::TypeName(type);
     }
     os << std::endl;
+    ++line_nr;
 
     for (const byte* locals = body.start; locals < pc; locals++) {
       os << (locals == body.start ? "0x" : " 0x") << AsHex(*locals, 2) << ",";