Allow numeric literals to be checked for a decimal point.

src/ast-value-factory.cc

Index: src/ast-value-factory.cc
diff --git a/src/ast-value-factory.cc b/src/ast-value-factory.cc
index a819483eccbc417ea76e5e687dc59a3f304461d9..1634a54451118087d9d36396b9eb0de97002696b 100644
--- a/src/ast-value-factory.cc
+++ b/src/ast-value-factory.cc
@@ -140,6 +140,7 @@ bool AstValue::BooleanValue() const {
     case SYMBOL:
       UNREACHABLE();
       break;
+    case NUMBER_WITH_DOT:
     case NUMBER:
       return DoubleToBoolean(number_);
     case SMI:
@@ -175,6 +176,7 @@ void AstValue::Internalize(Isolate* isolate) {
         value_ = isolate->factory()->home_object_symbol();
       }
       break;
+    case NUMBER_WITH_DOT:
     case NUMBER:
       value_ = isolate->factory()->NewNumber(number_, TENURED);
       break;
@@ -290,8 +292,11 @@ const AstValue* AstValueFactory::NewSymbol(const char* name) {
 }
 
 
-const AstValue* AstValueFactory::NewNumber(double number) {
+const AstValue* AstValueFactory::NewNumber(double number, bool with_dot) {
   AstValue* value = new (zone_) AstValue(number);
+  if (with_dot) {
+    value->MarkWithDot();
+  }
   if (isolate_) {
     value->Internalize(isolate_);
   }