[wasm] Remove raw byte pointers from WasmModule

src/wasm/wasm-text.cc

Index: src/wasm/wasm-text.cc
diff --git a/src/wasm/wasm-text.cc b/src/wasm/wasm-text.cc
index f26663227ac99eb43d63edc2e7e0e383bbcdf38b..8ce329a3153ec5afd23df4aa89e2b5e433744280 100644
--- a/src/wasm/wasm-text.cc
+++ b/src/wasm/wasm-text.cc
@@ -128,7 +128,8 @@ bool IsValidFunctionName(const Vector<const char> &name) {
 }  // namespace
 
 void wasm::PrintWasmText(
-    const WasmModule *module, uint32_t func_index, std::ostream &os,
+    const WasmModule *module, const ModuleWireBytes &wire_bytes,
+    uint32_t func_index, std::ostream &os,
     std::vector<std::tuple<uint32_t, int, int>> *offset_table) {
   DCHECK_NOT_NULL(module);
   DCHECK_GT(module->functions.size(), func_index);
@@ -141,9 +142,7 @@ void wasm::PrintWasmText(
 
   // Print the function signature.
   os << "func";
-  Vector<const char> fun_name(
-      reinterpret_cast<const char *>(module->module_start + fun->name_offset),
-      fun->name_length);
+  WasmName fun_name = wire_bytes.GetNameOrNull(fun);
   if (IsValidFunctionName(fun_name)) {
     os << " $";
     os.write(fun_name.start(), fun_name.length());
@@ -167,10 +166,10 @@ void wasm::PrintWasmText(
 
   // Print the local declarations.
   AstLocalDecls decls(&zone);
-  const byte *code_start = module->module_start + fun->code_start_offset;
-  const byte *code_end = module->module_start + fun->code_end_offset;
-  BytecodeIterator i(code_start, code_end, &decls);
-  DCHECK_LT(code_start, i.pc());
+  Vector<const byte> func_bytes = wire_bytes.module_bytes.SubVector(
+      fun->code_start_offset, fun->code_end_offset);
+  BytecodeIterator i(func_bytes.begin(), func_bytes.end(), &decls);
+  DCHECK_LT(func_bytes.begin(), i.pc());
   if (!decls.local_types.empty()) {
     os << "(local";
     for (auto p : decls.local_types) {