Suppress a "-Wliteral-conversion" compiler warning.

error: implicit conversion from 'double' to 'uint64_t' (aka 'unsigned long') changes value from -0 to 0 [-Werror,-Wliteral-conversion]
llvm-svn: 346841
diff --git a/lldb/source/Plugins/Language/ObjC/Cocoa.cpp b/lldb/source/Plugins/Language/ObjC/Cocoa.cpp
index 72fd7c5..16f77e8 100644
--- a/lldb/source/Plugins/Language/ObjC/Cocoa.cpp
+++ b/lldb/source/Plugins/Language/ObjC/Cocoa.cpp
@@ -781,7 +781,7 @@
   if (encodedTimeInterval == 0)
     return 0.0;
   if (encodedTimeInterval == std::numeric_limits<uint64_t>::max())
-    return -0.0;
+    return (uint64_t)-0.0;
 
   TaggedDoubleBits encodedBits = { .i = encodedTimeInterval };
   DoubleBits decodedBits;