[Clang] Invoke shell script with bash

This test attempts to run a reproducer script generated by clang. This
is intended to be run by a shell, so invoke it with an actual shell.
This enables running the test with LLVM lit's internal shell.

Reviewers: bcardosolopes, ilovepi, petrhosek

Reviewed By: ilovepi

Pull Request: #157608

Author: boomanaiden154

clang/test/Modules/crash-vfs-umbrella-frameworks.m

@@ -1,7 +1,6 @@
-// REQUIRES: crash-recovery, shell
-
-// FIXME: This XFAIL is cargo-culted from crash-report.c. Do we need it?
-// XFAIL: target={{.*-windows-gnu}}
+// REQUIRES: crash-recovery
+// File path separator differences.
+// UNSUPPORTED: system-windows
 
 // RUN: rm -rf %t
 // RUN: mkdir -p %t/i %t/m %t
@@ -44,4 +43,4 @@
 // RUN: rm -rf i
 // RUN: rm -rf crash-vfs-umbrella-*.cache/modules/*
 // RUN: chmod 755 crash-vfs-*.sh
-// RUN: ./crash-vfs-*.sh
+// RUN: bash ./crash-vfs-*.sh