Fix simarm64 bugs on Windows.

runtime/vm/constants_arm64.h

Index: runtime/vm/constants_arm64.h
diff --git a/runtime/vm/constants_arm64.h b/runtime/vm/constants_arm64.h
index 542fd521f84ef780f9ccfd05a36e561b30d353d2..bafbc730d0a42cf53d566e17710bf167a19f4835 100644
--- a/runtime/vm/constants_arm64.h
+++ b/runtime/vm/constants_arm64.h
@@ -810,7 +810,7 @@ static inline uint64_t RotateRight(uint64_t value,
                                    uint8_t width) {
   ASSERT(width <= 64);
   rotate &= 63;
-  return ((value & ((1UL << rotate) - 1UL)) << (width - rotate)) |
+  return ((value & ((1ULL << rotate) - 1ULL)) << (width - rotate)) |
          (value >> rotate);
 }
 
@@ -820,7 +820,7 @@ static inline uint64_t RepeatBitsAcrossReg(uint8_t reg_size,
   ASSERT((width == 2) || (width == 4) || (width == 8) || (width == 16) ||
          (width == 32));
   ASSERT((reg_size == kWRegSizeInBits) || (reg_size == kXRegSizeInBits));
-  uint64_t result = value & ((1UL << width) - 1UL);
+  uint64_t result = value & ((1ULL << width) - 1ULL);
   for (unsigned i = width; i < reg_size; i *= 2) {
     result |= (result << i);
   }
@@ -1087,7 +1087,7 @@ class Instr {
       if (imm_s == 0x3F) {
         return 0;
       }
-      uint64_t bits = (1UL << (imm_s + 1)) - 1;
+      uint64_t bits = (1ULL << (imm_s + 1)) - 1;
       return RotateRight(bits, imm_r, 64);
     } else {
       if ((imm_s >> 1) == 0x1F) {
@@ -1099,7 +1099,7 @@ class Instr {
           if ((imm_s & mask) == mask) {
             return 0;
           }
-          uint64_t bits = (1UL << ((imm_s & mask) + 1)) - 1;
+          uint64_t bits = (1ULL << ((imm_s & mask) + 1)) - 1;
           return RepeatBitsAcrossReg(
               reg_size, RotateRight(bits, imm_r & mask, width), width);
         }