Merge experimental/a64 to bleeding_edge.

src/x64/assembler-x64.h

Index: src/x64/assembler-x64.h
diff --git a/src/x64/assembler-x64.h b/src/x64/assembler-x64.h
index 06aa17d6caba9a1078dc3afe995eaacc08c575e5..ba3dbd7613b93181f0a0762c347d10d4a8f7bd4b 100644
--- a/src/x64/assembler-x64.h
+++ b/src/x64/assembler-x64.h
@@ -44,27 +44,6 @@ namespace internal {
 
 // Utility functions
 
-// Test whether a 64-bit value is in a specific range.
-inline bool is_uint32(int64_t x) {
-  static const uint64_t kMaxUInt32 = V8_UINT64_C(0xffffffff);
-  return static_cast<uint64_t>(x) <= kMaxUInt32;
-}
-
-inline bool is_int32(int64_t x) {
-  static const int64_t kMinInt32 = -V8_INT64_C(0x80000000);
-  return is_uint32(x - kMinInt32);
-}
-
-inline bool uint_is_int32(uint64_t x) {
-  static const uint64_t kMaxInt32 = V8_UINT64_C(0x7fffffff);
-  return x <= kMaxInt32;
-}
-
-inline bool is_uint32(uint64_t x) {
-  static const uint64_t kMaxUInt32 = V8_UINT64_C(0xffffffff);
-  return x <= kMaxUInt32;
-}
-
 // CPU Registers.
 //
 // 1) We would prefer to use an enum, but enum values are assignment-