Avoid double-free in functions cloned for vulkan relaxed mode (#2987)

Avoid double-free in functions cloned for vulkan relaxed mode (#2987)

* Avoid double-free in functions cloned for vulkan relaxed mode

When rewriting function calls atomicCounterIncrement and
atoicCounterDecrement, clone the parameters so that the TParameter
'type' field is cloned.  This avoids double-free when both the original
and transformed functions are deleted by the parser.

Fixes a ubsan failure.