Debug error

test/cctest/wasm/test-run-wasm-module.cc

Index: test/cctest/wasm/test-run-wasm-module.cc
diff --git a/test/cctest/wasm/test-run-wasm-module.cc b/test/cctest/wasm/test-run-wasm-module.cc
index 118a91f3e9e33eccc2bb60421dd4858a41589d55..b8c3b66815a3f384e68f893d5e5da8260ccf34d6 100644
--- a/test/cctest/wasm/test-run-wasm-module.cc
+++ b/test/cctest/wasm/test-run-wasm-module.cc
@@ -193,3 +193,21 @@ TEST(Run_WasmModule_Global) {
   WasmModuleWriter* writer = builder->Build(&zone);
   TestModule(writer->WriteTo(&zone), 97);
 }
+
+TEST(Run_WasmModule_SubDebug) {
+  v8::base::AccountingAllocator allocator;
+  Zone zone(&allocator);
+  WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
+  uint16_t f_index = builder->AddFunction();
+  WasmFunctionBuilder* f = builder->FunctionAt(f_index);
+  f->ReturnType(kAstI32);
+  f->Exported(1);
+  uint16_t local = f->AddLocal(kAstI32);
+  byte code[] = {
+      WASM_SET_LOCAL(local, WASM_I32V(-1)),
+      WASM_RETURN(WASM_I32_SUB(WASM_GET_LOCAL(local), WASM_I32V(0)))};
+  uint32_t local_indices[] = {1, 11};
+  f->EmitCode(code, sizeof(code), local_indices, sizeof(local_indices) / 4);
+  WasmModuleWriter* writer = builder->Build(&zone);
+  TestModule(writer->WriteTo(&zone), -1);
+}