C++2a -> C++20 in some identifiers; NFC.
diff --git a/clang/lib/Sema/SemaLambda.cpp b/clang/lib/Sema/SemaLambda.cpp
index ab4f349..8b3c971 100644
--- a/clang/lib/Sema/SemaLambda.cpp
+++ b/clang/lib/Sema/SemaLambda.cpp
@@ -800,7 +800,7 @@
   }
   if (EllipsisLoc.isValid()) {
     if (Init->containsUnexpandedParameterPack()) {
-      Diag(EllipsisLoc, getLangOpts().CPlusPlus2a
+      Diag(EllipsisLoc, getLangOpts().CPlusPlus20
                             ? diag::warn_cxx17_compat_init_capture_pack
                             : diag::ext_init_capture_pack);
       DeductType = Context.getPackExpansionType(DeductType, NumExpansions);
@@ -1053,7 +1053,7 @@
       //  "&identifier", "this", or "* this". [ Note: The form [&,this] is
       //  redundant but accepted for compatibility with ISO C++14. --end note ]
       if (Intro.Default == LCD_ByCopy && C->Kind != LCK_StarThis)
-        Diag(C->Loc, !getLangOpts().CPlusPlus2a
+        Diag(C->Loc, !getLangOpts().CPlusPlus20
                          ? diag::ext_equals_this_lambda_capture_cxx2a
                          : diag::warn_cxx17_compat_equals_this_lambda_capture);
 
@@ -1748,7 +1748,7 @@
           // Capturing 'this' implicitly with a default of '[=]' is deprecated,
           // because it results in a reference capture. Don't warn prior to
           // C++2a; there's nothing that can be done about it before then.
-          if (getLangOpts().CPlusPlus2a && IsImplicit &&
+          if (getLangOpts().CPlusPlus20 && IsImplicit &&
               CaptureDefault == LCD_ByCopy) {
             Diag(From.getLocation(), diag::warn_deprecated_this_capture);
             Diag(CaptureDefaultLoc, diag::note_deprecated_this_capture)