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

src/asmjs/asm-typer.h

Index: src/asmjs/asm-typer.h
diff --git a/src/asmjs/asm-typer.h b/src/asmjs/asm-typer.h
index 8ddcb34b0ff17d35bc2dc9fea7bb94da3c39acf6..20e3a34695617f02eadfd002a0ac0a2113535a96 100644
--- a/src/asmjs/asm-typer.h
+++ b/src/asmjs/asm-typer.h
@@ -82,6 +82,8 @@ class AsmTyper final {
   Handle<JSMessageObject> error_message() const { return error_message_; }
   const MessageLocation* message_location() const { return &message_location_; }
 
+  AsmType* TriggerParsingError();
+
   AsmType* TypeOf(AstNode* node) const;
   AsmType* TypeOf(Variable* v) const;
   StandardMember VariableAsStandardMember(Variable* var);