[wasm] Provide better stack traces for asm.js code

test/unittests/wasm/module-decoder-unittest.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "test/unittests/test-utils.h"
 
 #include "src/handles.h"
 #include "src/objects-inl.h"
 #include "src/wasm/module-decoder.h"
 #include "src/wasm/wasm-macro-gen.h"
@@ skipping 29 matching lines @@
   SECTION(Type, 1 + 3 * (count)), U32V_1(count), __VA_ARGS__
 #define FUNCTION_SIGNATURES_SECTION(count, ...) \
   SECTION(Function, 1 + (count)), U32V_1(count), __VA_ARGS__
 
 #define FOO_STRING 3, 'f', 'o', 'o'
 #define NO_LOCAL_NAMES 0
 
 #define EMPTY_SIGNATURES_SECTION SECTION(Type, 1), 0
 #define EMPTY_FUNCTION_SIGNATURES_SECTION SECTION(Function, 1), 0
 #define EMPTY_FUNCTION_BODIES_SECTION SECTION(Code, 1), 0
-#define SECTION_NAMES(size) \
-  kUnknownSectionCode, U32V_1(size + 5), 4, 'n', 'a', 'm', 'e'
+#define SECTION_NAMES(size) SECTION(Unknown, size + 5), 4, 'n', 'a', 'm', 'e'
 #define EMPTY_NAMES_SECTION SECTION_NAMES(1), 0
 
 #define X1(...) __VA_ARGS__
 #define X2(...) __VA_ARGS__, __VA_ARGS__
 #define X3(...) __VA_ARGS__, __VA_ARGS__, __VA_ARGS__
 #define X4(...) __VA_ARGS__, __VA_ARGS__, __VA_ARGS__, __VA_ARGS__
 
 #define ONE_EMPTY_FUNCTION SECTION(Function, 1 + 1 * 1), 1, X1(0)
 
 #define TWO_EMPTY_FUNCTIONS SECTION(Function, 1 + 2 * 1), 2, X2(0)
@@ skipping 1219 matching lines @@
   EXPECT_INIT_EXPR_FAIL(WASM_IF_ELSE(WASM_ZERO, WASM_ZERO, WASM_ZERO));
 }
 
 TEST_F(WasmModuleVerifyTest, InitExpr_global) {
   static const byte data[] = {WASM_INIT_EXPR_GLOBAL(37)};
   WasmInitExpr expr = DecodeWasmInitExprForTesting(data, data + sizeof(data));
   EXPECT_EQ(WasmInitExpr::kGlobalIndex, expr.kind);
   EXPECT_EQ(37, expr.val.global_index);
 }
 
+TEST_F(WasmModuleVerifyTest, Multiple_Named_Sections) {
+  static const byte data[] = {
+      SECTION(Unknown, 4), 1, 'X', 17,  18,                      // --
+      SECTION(Unknown, 9), 3, 'f', 'o', 'o', 5,   6,   7, 8, 9,  // --
+      SECTION(Unknown, 8), 5, 'o', 't', 'h', 'e', 'r', 7, 8,     // --
+  };
+  EXPECT_VERIFIES(data);
+}
+
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8