Delete unused TypeInfo class

src/v8conversions.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 15 matching lines @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #ifndef V8_V8CONVERSIONS_H_
 #define V8_V8CONVERSIONS_H_
 
 #include "conversions.h"
 
 namespace v8 {
 namespace internal {
 
+
+static inline bool IsMinusZero(double value) {
+  static const DoubleRepresentation minus_zero(-0.0);
+  return DoubleRepresentation(value) == minus_zero;
+}
+
+
+// Integer32 is an integer that can be represented as a signed 32-bit
+// integer. It has to be in the range [-2^31, 2^31 - 1].
+// We also have to check for negative 0 as it is not an Integer32.
+static inline bool IsInt32Double(double value) {
+  return !IsMinusZero(value) &&
+         value >= kMinInt &&
+         value <= kMaxInt &&
+         value == FastI2D(FastD2I(value));
+}
+
+
 // Convert from Number object to C integer.
 inline int32_t NumberToInt32(Object* number) {
   if (number->IsSmi()) return Smi::cast(number)->value();
   return DoubleToInt32(number->Number());
 }
 
 
 inline uint32_t NumberToUint32(Object* number) {
   if (number->IsSmi()) return Smi::cast(number)->value();
   return DoubleToUint32(number->Number());
@@ skipping 40 matching lines @@
                            Object* number) {
   size_t result = 0;
   bool is_valid = TryNumberToSize(isolate, number, &result);
   CHECK(is_valid);
   return result;
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_V8CONVERSIONS_H_