[NFC] move comment back to where it belongs.

It appears that OpenMP changes caused this comment to get moved away
from where it was intended, so this patch puts it back next to the
multiversioning code, as intended.

Author: erichkeane

clang/lib/CodeGen/CodeGenModule.cpp

@@ -4691,8 +4691,6 @@ llvm::Constant *CodeGenModule::GetOrCreateLLVMFunction(
   const Decl *D = GD.getDecl();
 
   std::string NameWithoutMultiVersionMangling;
-  // Any attempts to use a MultiVersion function should result in retrieving
-  // the iFunc instead. Name Mangling will handle the rest of the changes.
   if (const FunctionDecl *FD = cast_or_null<FunctionDecl>(D)) {
     // For the device mark the function as one that should be emitted.
     if (getLangOpts().OpenMPIsTargetDevice && OpenMPRuntime &&
@@ -4710,6 +4708,8 @@ llvm::Constant *CodeGenModule::GetOrCreateLLVMFunction(
       }
     }
 
+    // Any attempts to use a MultiVersion function should result in retrieving
+    // the iFunc instead. Name Mangling will handle the rest of the changes.
     if (FD->isMultiVersion()) {
       UpdateMultiVersionNames(GD, FD, MangledName);
       if (!IsForDefinition) {