[wasm][asm.js] Cancel exception and rethrow on parse failure.

src/asmjs/asm-typer.cc

 // Copyright 2016 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 "src/asmjs/asm-typer.h"
 
 #include <algorithm>
 #include <limits>
 #include <memory>
 #include <string>
@@ skipping 551 matching lines @@
 
 bool AsmTyper::ValidateAfterFunctionsPhase() {
   if (!AsmType::None()->IsExactly(ValidateModuleAfterFunctionsPhase(root_))) {
     return true;
   }
   return false;
 }
 
 void AsmTyper::ClearFunctionNodeTypes() { function_node_types_.clear(); }
 
+AsmType* AsmTyper::TriggerParsingError() { FAIL(root_, "Parsing error"); }
+
 namespace {
 bool IsUseAsmDirective(Statement* first_statement) {
   ExpressionStatement* use_asm = first_statement->AsExpressionStatement();
   if (use_asm == nullptr) {
     return false;
   }
 
   Literal* use_asm_literal = use_asm->expression()->AsLiteral();
 
   if (use_asm_literal == nullptr) {
@@ skipping 2352 matching lines @@
          "Heap view creation parameter should be the module's heap parameter.");
   }
 
   DCHECK(heap_view_info->type()->IsA(AsmType::Heap()));
   return heap_view_info->type();
 }
 
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8