[Test] Temporarily increase large_nested_array.swift.gyb timeout to 2400 seconds while we investigate timeouts in CI.

Author: mikeash

validation-test/SILOptimizer/large_nested_array.swift.gyb

@@ -6,7 +6,11 @@
 // If the compiler needs more than 5 minutes, there is probably a real problem.
 // So please don't just increase the timeout in case this fails.
 
-// RUN: %{python} %S/../../test/Inputs/timeout.py 240 %target-swift-frontend -O -parse-as-library -sil-verify-none -c %t/main.swift -o %t/main.o
+// TEMPORARY NOTE: The timeout has been raised to 2400 seconds while we
+// investigate timeouts in CI runs of this test. This should be set back to the
+// original time of 240 seconds once that's been figured out.
+
+// RUN: %{python} %S/../../test/Inputs/timeout.py 2400 %target-swift-frontend -O -parse-as-library -sil-verify-none -c %t/main.swift -o %t/main.o
 
 // REQUIRES: swift_stdlib_no_asserts,optimized_stdlib
 // REQUIRES: long_test