Classes: Add basic support for properties

src/base/bits.h

Index: src/base/bits.h
diff --git a/src/base/bits.h b/src/base/bits.h
index 5e0e248a02ba082535543f6cb8ad1df5ba65f161..0f4d4c712becc540dd767291b1766b12c526a09e 100644
--- a/src/base/bits.h
+++ b/src/base/bits.h
@@ -5,7 +5,7 @@
 #ifndef V8_BASE_BITS_H_
 #define V8_BASE_BITS_H_
 
-#include "include/v8stdint.h"
+#include <stdint.h>
 #include "src/base/macros.h"
 #if V8_CC_MSVC
 #include <intrin.h>
@@ -199,6 +199,32 @@ int32_t SignedMulHigh32(int32_t lhs, int32_t rhs);
 // adds the accumulate value |acc|.
 int32_t SignedMulHighAndAdd32(int32_t lhs, int32_t rhs, int32_t acc);
 
+
+// SignedDiv32(lhs, rhs) divides |lhs| by |rhs| and returns the quotient
+// truncated to int32. If |rhs| is zero, then zero is returned. If |lhs|
+// is minint and |rhs| is -1, it returns minint.
+int32_t SignedDiv32(int32_t lhs, int32_t rhs);
+
+
+// SignedMod32(lhs, rhs) divides |lhs| by |rhs| and returns the remainder
+// truncated to int32. If either |rhs| is zero or |lhs| is minint and |rhs|
+// is -1, it returns zero.
+int32_t SignedMod32(int32_t lhs, int32_t rhs);
+
+
+// UnsignedDiv32(lhs, rhs) divides |lhs| by |rhs| and returns the quotient
+// truncated to uint32. If |rhs| is zero, then zero is returned.
+inline uint32_t UnsignedDiv32(uint32_t lhs, uint32_t rhs) {
+  return rhs ? lhs / rhs : 0u;
+}
+
+
+// UnsignedMod32(lhs, rhs) divides |lhs| by |rhs| and returns the remainder
+// truncated to uint32. If |rhs| is zero, then zero is returned.
+inline uint32_t UnsignedMod32(uint32_t lhs, uint32_t rhs) {
+  return rhs ? lhs % rhs : 0u;
+}
+
 }  // namespace bits
 }  // namespace base
 }  // namespace v8