[arm64] Fix some signed/unsigned type inconsistencies.

src/arm64/constants-arm64.h

Index: src/arm64/constants-arm64.h
diff --git a/src/arm64/constants-arm64.h b/src/arm64/constants-arm64.h
index 8816cd0e2b3169571cade4e063d39979f507ffb2..43a375d953d6d935da9504639cd5cfa31ddcce33 100644
--- a/src/arm64/constants-arm64.h
+++ b/src/arm64/constants-arm64.h
@@ -32,8 +32,8 @@ const unsigned kInstructionSizeLog2 = 2;
 const unsigned kLoadLiteralScaleLog2 = 2;
 const unsigned kMaxLoadLiteralRange = 1 * MB;
 
-const unsigned kNumberOfRegisters = 32;
-const unsigned kNumberOfFPRegisters = 32;
+const int kNumberOfRegisters = 32;
+const int kNumberOfFPRegisters = 32;
 // Callee saved registers are x19-x30(lr).
 const int kNumberOfCalleeSavedRegisters = 11;
 const int kFirstCalleeSavedRegisterIndex = 19;
@@ -42,23 +42,22 @@ const int kNumberOfCalleeSavedFPRegisters = 8;
 const int kFirstCalleeSavedFPRegisterIndex = 8;
 // Callee saved registers with no specific purpose in JS are x19-x25.
 const unsigned kJSCalleeSavedRegList = 0x03f80000;
-// TODO(all): k<Y>RegSize should probably be k<Y>RegSizeInBits.
-const unsigned kWRegSizeInBits = 32;
-const unsigned kWRegSizeInBitsLog2 = 5;
-const unsigned kWRegSize = kWRegSizeInBits >> 3;
-const unsigned kWRegSizeLog2 = kWRegSizeInBitsLog2 - 3;
-const unsigned kXRegSizeInBits = 64;
-const unsigned kXRegSizeInBitsLog2 = 6;
-const unsigned kXRegSize = kXRegSizeInBits >> 3;
-const unsigned kXRegSizeLog2 = kXRegSizeInBitsLog2 - 3;
-const unsigned kSRegSizeInBits = 32;
-const unsigned kSRegSizeInBitsLog2 = 5;
-const unsigned kSRegSize = kSRegSizeInBits >> 3;
-const unsigned kSRegSizeLog2 = kSRegSizeInBitsLog2 - 3;
-const unsigned kDRegSizeInBits = 64;
-const unsigned kDRegSizeInBitsLog2 = 6;
-const unsigned kDRegSize = kDRegSizeInBits >> 3;
-const unsigned kDRegSizeLog2 = kDRegSizeInBitsLog2 - 3;
+const int kWRegSizeInBits = 32;
+const int kWRegSizeInBitsLog2 = 5;
+const int kWRegSize = kWRegSizeInBits >> 3;
+const int kWRegSizeLog2 = kWRegSizeInBitsLog2 - 3;
+const int kXRegSizeInBits = 64;
+const int kXRegSizeInBitsLog2 = 6;
+const int kXRegSize = kXRegSizeInBits >> 3;
+const int kXRegSizeLog2 = kXRegSizeInBitsLog2 - 3;
+const int kSRegSizeInBits = 32;
+const int kSRegSizeInBitsLog2 = 5;
+const int kSRegSize = kSRegSizeInBits >> 3;
+const int kSRegSizeLog2 = kSRegSizeInBitsLog2 - 3;
+const int kDRegSizeInBits = 64;
+const int kDRegSizeInBitsLog2 = 6;
+const int kDRegSize = kDRegSizeInBits >> 3;
+const int kDRegSizeLog2 = kDRegSizeInBitsLog2 - 3;
 const int64_t kWRegMask = 0x00000000ffffffffL;
 const int64_t kXRegMask = 0xffffffffffffffffL;
 const int64_t kSRegMask = 0x00000000ffffffffL;
@@ -86,13 +85,13 @@ const int64_t kXMaxInt = 0x7fffffffffffffffL;
 const int64_t kXMinInt = 0x8000000000000000L;
 const int32_t kWMaxInt = 0x7fffffff;
 const int32_t kWMinInt = 0x80000000;
-const unsigned kIp0Code = 16;
-const unsigned kIp1Code = 17;
-const unsigned kFramePointerRegCode = 29;
-const unsigned kLinkRegCode = 30;
-const unsigned kZeroRegCode = 31;
-const unsigned kJSSPCode = 28;
-const unsigned kSPRegInternalCode = 63;
+const int kIp0Code = 16;
+const int kIp1Code = 17;
+const int kFramePointerRegCode = 29;
+const int kLinkRegCode = 30;
+const int kZeroRegCode = 31;
+const int kJSSPCode = 28;
+const int kSPRegInternalCode = 63;
 const unsigned kRegCodeMask = 0x1f;
 const unsigned kShiftAmountWRegMask = 0x1f;
 const unsigned kShiftAmountXRegMask = 0x3f;