Disable vla-extension warning in the RUN line.

Author: Doug Wyatt

clang/test/Sema/attr-nonblocking-constraints.cpp

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -fblocks -fcxx-exceptions -std=c++20 -verify -Wfunction-effects %s
+// RUN: %clang_cc1 -fsyntax-only -fblocks -fcxx-exceptions -std=c++20 -verify -Wfunction-effects -Wno-vla-extension %s
 // These are in a separate file because errors (e.g. incompatible attributes) currently prevent
 // the FXAnalysis pass from running at all.
 
@@ -259,10 +259,7 @@ void nb14(unsigned idx) [[clang::nonblocking]]
 	FP twoDim[2][2] = {};
 	FP g = twoDim[1][1];
 
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wvla-extension"
 	FP vla[idx];
-#pragma clang diagnostic pop
 	FP h = vla[0];
 }