Fix two instances of -Wparentheses warnings [NFC]

Add parentheses around the assert conditions.

Without this gcc warned like
 ../lib/Target/AMDGPU/GCNSchedStrategy.cpp:2250: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  2250 |          NewMI != RegionBounds.second && "cannot remove at region end");
and
 ../../clang/lib/Sema/SemaOverload.cpp:11326:39: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
 11326 |          DeferredCandidatesCount == 0 &&
       |          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~
 11327 |              "Unexpected deferred template candidates");
       |              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Author: mikaelholmen

clang/lib/Sema/SemaOverload.cpp

@@ -11322,9 +11322,9 @@ OverloadingResult OverloadCandidateSet::BestViableFunction(Sema &S,
                                                            SourceLocation Loc,
                                                            iterator &Best) {
 
-  assert(shouldDeferTemplateArgumentDeduction(S.getLangOpts()) ||
-         DeferredCandidatesCount == 0 &&
-             "Unexpected deferred template candidates");
+  assert((shouldDeferTemplateArgumentDeduction(S.getLangOpts()) ||
+          DeferredCandidatesCount == 0) &&
+         "Unexpected deferred template candidates");
 
   bool TwoPhaseResolution =
       DeferredCandidatesCount != 0 && !ResolutionByPerfectCandidateIsDisabled;

llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp

@@ -2246,8 +2246,8 @@ void PreRARematStage::finalizeGCNSchedStage() {
 void GCNScheduleDAGMILive::updateRegionBoundaries(
     RegionBoundaries &RegionBounds, MachineBasicBlock::iterator MI,
     MachineInstr *NewMI) {
-  assert(!NewMI ||
-         NewMI != RegionBounds.second && "cannot remove at region end");
+  assert((!NewMI || NewMI != RegionBounds.second) &&
+         "cannot remove at region end");
 
   if (RegionBounds.first == RegionBounds.second) {
     assert(NewMI && "cannot remove from an empty region");