[JITLink] Silence GCC warnings about parentheses around && and || operators

This silences the following warnings:

../include/llvm/ExecutionEngine/JITLink/JITLink.h:1108:56: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
 1105 |     assert(S == Scope::Local || llvm::count_if(AbsoluteSymbols,
      |                                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 1106 |                                                [&](const Symbol *Sym) {
      |                                                ~~~~~~~~~~~~~~~~~~~~~~~~
 1107 |                                                  return Sym->getName() == Name;
      |                                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 1108 |                                                }) == 0 &&
      |                                                ~~~~~~~~^~
 1109 |                                     "Duplicate absolute symbol");
      |                                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~