[libFuzzer] Use long long to ensure 64 bits.

We should always use unsigned long long to ensure 64 bits. On Windows, unsigned
long is 4 bytes. This was the reason why value-profile-cmp4.test was failing on
Windows.

Differential Revision: https://reviews.llvm.org/D29617

llvm-svn: 294390
diff --git a/llvm/lib/Fuzzer/test/AbsNegAndConstant64Test.cpp b/llvm/lib/Fuzzer/test/AbsNegAndConstant64Test.cpp
index 5774814..69b0d59 100644
--- a/llvm/lib/Fuzzer/test/AbsNegAndConstant64Test.cpp
+++ b/llvm/lib/Fuzzer/test/AbsNegAndConstant64Test.cpp
@@ -14,7 +14,7 @@
   uint64_t y;
   memcpy(&x, Data, sizeof(x));
   memcpy(&y, Data + sizeof(x), sizeof(y));
-  if (labs(x) < 0 && y == 0xbaddcafedeadbeefUL) {
+  if (llabs(x) < 0 && y == 0xbaddcafedeadbeefULL) {
     printf("BINGO; Found the target, exiting; x = 0x%lx y 0x%lx\n", x, y);
     exit(1);
   }