[arm64][msvc] fix another unsigned shift error in the tests

Bug: v8:10012
Change-Id: I8d2d95090bd45c560cbc208737f037adc433facb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2072741Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Richard Townsend <richard.townsend@arm.com>
Cr-Commit-Position: refs/heads/master@{#66458}

src/builtins/arm64/builtins-arm64.cc

@@ -3028,7 +3028,7 @@ void Builtins::Generate_WasmDebugBreak(MacroAssembler* masm) {
     // size is a multiple of 16 bytes.
     if (NumRegs(gp_regs) % 2) {
       // Just add any unset register.
-      gp_regs |= 1 << base::bits::CountTrailingZeros(~gp_regs);
+      gp_regs |= uint64_t{1} << base::bits::CountTrailingZeros(~gp_regs);
     }
     RegList fp_regs = 0;
     for (DoubleRegister reg : wasm::kFpParamRegisters) fp_regs |= reg.bit();