cquery: 2018-05-01 -> 2018-08-08 (#44726)

This also extends the wrapper to explicitly set the cache
directory, since it is required for every invokation with
the `--init` option.

pkgs/development/tools/misc/cquery/wrapper

@@ -1,6 +1,6 @@
 #! @shell@ -e
 
-initString="--init={\"extraClangArguments\": [@standard_library_includes@"
+initString="--init={\"cacheDirectory\": \"/tmp/cquery\", \"extraClangArguments\": [@standard_library_includes@"
 
 if [ "${NIX_CFLAGS_COMPILE}" != "" ]; then
   read -a cflags_array <<< ${NIX_CFLAGS_COMPILE}