Remove support for Javascript warnings in the VM.

runtime/vm/intrinsifier.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 // Class for intrinsifying functions.
 
 #include "vm/assembler.h"
 #include "vm/compiler.h"
 #include "vm/flags.h"
 #include "vm/flow_graph.h"
 #include "vm/flow_graph_compiler.h"
 #include "vm/flow_graph_allocator.h"
 #include "vm/flow_graph_builder.h"
 #include "vm/il_printer.h"
 #include "vm/intermediate_language.h"
 #include "vm/intrinsifier.h"
 #include "vm/object.h"
 #include "vm/parser.h"
 #include "vm/symbols.h"
 
 
 namespace dart {
 
 DEFINE_FLAG(bool, intrinsify, true, "Instrinsify when possible");
-DECLARE_FLAG(bool, throw_on_javascript_int_overflow);
 DECLARE_FLAG(bool, code_comments);
 DECLARE_FLAG(bool, print_flow_graph);
 DECLARE_FLAG(bool, print_flow_graph_optimized);
 
 bool Intrinsifier::CanIntrinsify(const Function& function) {
   if (!FLAG_intrinsify) return false;
   if (function.IsClosureFunction()) return false;
   // Can occur because of compile-all flag.
   if (function.is_external()) return false;
   return function.is_intrinsic();
@@ skipping 159 matching lines @@
     case MethodRecognizer::k##enum_name:                                       \
       compiler->assembler()->Comment("Intrinsic");                             \
       enum_name(compiler->assembler());                                        \
       break;
 
   switch (function.recognized_kind()) {
     ALL_INTRINSICS_NO_INTEGER_LIB_LIST(EMIT_CASE);
     default:
       break;
   }
-  // Integer intrinsics are in the core library, but we don't want to
-  // intrinsify when Smi > 32 bits if we are looking for javascript integer
-  // overflow.
-  if (!(FLAG_throw_on_javascript_int_overflow && (Smi::kBits >= 32))) {
-    switch (function.recognized_kind()) {
-      CORE_INTEGER_LIB_INTRINSIC_LIST(EMIT_CASE)
-      default:
-        break;
-    }
+  switch (function.recognized_kind()) {
+    CORE_INTEGER_LIB_INTRINSIC_LIST(EMIT_CASE)
+    default:
+      break;
   }
 #undef EMIT_INTRINSIC
 }
 
 
 static intptr_t CidForRepresentation(Representation rep) {
   switch (rep) {
     case kUnboxedDouble:
       return kDoubleCid;
     case kUnboxedFloat32x4:
@@ skipping 660 matching lines @@
       new UnaryDoubleOpInstr(Token::kNEGATE,
                              new Value(unboxed_value),
                              Thread::kNoDeoptId));
   Definition* result = builder.AddDefinition(
       BoxInstr::Create(kUnboxedDouble, new Value(unboxed_result)));
   builder.AddIntrinsicReturn(new Value(result));
   return true;
 }
 
 }  // namespace dart