Remove support for Javascript warnings in the VM.

runtime/vm/intermediate_language.h

 // Copyright (c) 2013, 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.
 
 #ifndef VM_INTERMEDIATE_LANGUAGE_H_
 #define VM_INTERMEDIATE_LANGUAGE_H_
 
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
 #include "vm/handles_impl.h"
 #include "vm/locations.h"
 #include "vm/method_recognizer.h"
 #include "vm/object.h"
 #include "vm/parser.h"
 #include "vm/token_position.h"
 
 namespace dart {
 
-DECLARE_FLAG(bool, throw_on_javascript_int_overflow);
-
 class BitVector;
 class BlockEntryInstr;
 class BoxIntegerInstr;
 class BufferFormatter;
 class CatchBlockEntryInstr;
 class ComparisonInstr;
 class Definition;
 class Environment;
 class FlowGraph;
 class FlowGraphBuilder;
@@ skipping 6790 matching lines @@
 
 
 class UnaryMintOpInstr : public UnaryIntegerOpInstr {
  public:
   UnaryMintOpInstr(Token::Kind op_kind, Value* value, intptr_t deopt_id)
       : UnaryIntegerOpInstr(op_kind, value, deopt_id) {
     ASSERT(op_kind == Token::kBIT_NOT);
   }
 
   virtual bool CanDeoptimize() const {
-    return FLAG_throw_on_javascript_int_overflow;
+    return false;
   }
 
   virtual CompileType ComputeType() const;
 
   virtual Representation representation() const {
     return kUnboxedMint;
   }
 
   virtual Representation RequiredInputRepresentation(intptr_t idx) const {
     ASSERT(idx == 0);
@@ skipping 239 matching lines @@
 class BinaryMintOpInstr : public BinaryIntegerOpInstr {
  public:
   BinaryMintOpInstr(Token::Kind op_kind,
                     Value* left,
                     Value* right,
                     intptr_t deopt_id)
       : BinaryIntegerOpInstr(op_kind, left, right, deopt_id) {
   }
 
   virtual bool CanDeoptimize() const {
-    return FLAG_throw_on_javascript_int_overflow
-        || (can_overflow() && ((op_kind() == Token::kADD) ||
+    return (can_overflow() && ((op_kind() == Token::kADD) ||
                                (op_kind() == Token::kSUB)))
         || (op_kind() == Token::kMUL);  // Deopt if inputs are not int32.
   }
 
   virtual Representation representation() const {
     return kUnboxedMint;
   }
 
   virtual Representation RequiredInputRepresentation(intptr_t idx) const {
     ASSERT((idx == 0) || (idx == 1));
@@ skipping 14 matching lines @@
  public:
   ShiftMintOpInstr(Token::Kind op_kind,
                    Value* left,
                    Value* right,
                    intptr_t deopt_id)
       : BinaryIntegerOpInstr(op_kind, left, right, deopt_id) {
     ASSERT((op_kind == Token::kSHR) || (op_kind == Token::kSHL));
   }
 
   virtual bool CanDeoptimize() const {
-    return FLAG_throw_on_javascript_int_overflow
-        || has_shift_count_check()
+    return  has_shift_count_check()
         || (can_overflow() && (op_kind() == Token::kSHL));
   }
 
   virtual Representation representation() const {
     return kUnboxedMint;
   }
 
   virtual Representation RequiredInputRepresentation(intptr_t idx) const {
     ASSERT((idx == 0) || (idx == 1));
     return (idx == 0) ? kUnboxedMint : kTagged;
@@ skipping 1071 matching lines @@
   LocationSummary* Name::MakeLocationSummary(Zone* zone, bool opt) const {    \
     UNIMPLEMENTED();                                                          \
     return NULL;                                                              \
   }                                                                           \
   void Name::EmitNativeCode(FlowGraphCompiler* compiler) { UNIMPLEMENTED(); }
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_