Remove shell requirements from tests that use 'cd'

Modules and Tooling tests in particular tend to want to change the cwd,
so we were missing test coverage in this area on Windows. It should now
be easier to write such portable tests.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@231029 91177308-0d34-0410-b5e6-96231b3b80d8

test/Analysis/html-diags.c

@@ -8,8 +8,6 @@
 // RUN: %clang_cc1 -analyze -analyzer-output=html -analyzer-checker=core -o testrelative %s
 // RUN: ls %T/dir/testrelative | grep report
 
-// REQUIRES: shell
-
 // Currently this test mainly checks that the HTML diagnostics doesn't crash
 // when handling macros will calls with macros.  We should actually validate
 // the output, but that requires being able to match against a specifically

test/Driver/debug-comp-dir.S

@@ -1,8 +1,2 @@
 // RUN: cd %S && %clang -### -g %s -c 2>&1 | FileCheck -check-prefix=CHECK-PWD %s
 // CHECK-PWD: {{"-fdebug-compilation-dir" ".*Driver.*"}}
-
-// "PWD=/foo gcc" wouldn't necessarily work. You would need to pick a different
-// path to the same directory (try a symlink).
-
-// This depends on host's behavior how $PWD would be set.
-// REQUIRES: shell

test/Driver/debug.c

@@ -1,8 +1,2 @@
 // RUN: cd %S && %clang -### -g %s -c 2>&1 | FileCheck -check-prefix=CHECK-PWD %s
 // CHECK-PWD: {{"-fdebug-compilation-dir" ".*Driver.*"}}
-
-// "PWD=/foo gcc" wouldn't necessarily work. You would need to pick a different
-// path to the same directory (try a symlink).
-
-// This depends on host's behavior how $PWD would be set.
-// REQUIRES: shell

test/Driver/output-file-cleanup.c

@@ -13,7 +13,6 @@
 // RUN: test ! -f %t.s
 // RUN: test -f %t.d
 
-// REQUIRES: shell
 // REQUIRES: crash-recovery
 
 #ifdef CRASH

test/Frontend/dependency-gen-escaping.c

@@ -1,4 +1,3 @@
-// REQUIRES: shell
 // PR15642
 // RUN: rm -rf %t.dir
 // RUN: mkdir -p %t.dir

test/Frontend/dependency-gen.c

@@ -1,4 +1,3 @@
-// REQUIRES: shell
 // Basic test
 // RUN: rm -rf %t.dir
 // RUN: mkdir -p %t.dir/a/b

test/Frontend/print-header-includes.c

@@ -1,5 +1,3 @@
-// REQUIRES: shell
-
 // RUN: cd %S
 // RUN: %clang_cc1 -include Inputs/test3.h -E -H -o %t.out %s 2> %t.stderr
 // RUN: FileCheck < %t.stderr %s

test/Modules/dependency-gen.modulemap

@@ -1,5 +1,3 @@
-// REQUIRES: shell
-//
 // RUN: cd %S
 // RUN: rm -f %t.cpm %t-base.pcm %t-base.d %t.d
 // RUN: %clang_cc1 -I. -x c++ -fmodule-maps -fmodule-name=test-base -fno-modules-implicit-maps -fmodules -emit-module -fno-validate-pch -fmodules-strict-decluse Inputs/dependency-gen-base.modulemap -dependency-file %t-base.d -MT %t-base.pcm -o %t-base.pcm -fmodule-map-file-home-is-cwd
@@ -14,5 +12,5 @@ module "test" {
 extern module "test-base2" "Inputs/dependency-gen-base2.modulemap"
 extern module "test-base" "Inputs/dependency-gen-base.modulemap"
 
-// CHECK: {{ |\./}}Inputs/dependency-gen-included2.h
-// CHECK: {{ |\./}}Inputs/dependency-gen-base.modulemap
+// CHECK: {{ |\.[/\\]}}Inputs{{[/\\]}}dependency-gen-included2.h
+// CHECK: {{ |\.[/\\]}}Inputs{{[/\\]}}dependency-gen-base.modulemap

test/Modules/explicit-build-relpath.cpp

@@ -2,7 +2,6 @@
 //
 // RUN: rm -rf %t
 // RUN: mkdir %t
-// RUN: cd %t
 
 // ----------------------
 // Build modules A and B.

test/Modules/filename.cpp

@@ -1,6 +1,5 @@
 // RUN: cd %S
 // RUN: %clang_cc1 -I. -fmodule-maps -fmodule-name=A  -fmodule-map-file=%S/Inputs/filename/module.map %s -E | FileCheck %s
-// REQUIRES: shell
 
 #include "Inputs/filename/a.h"
 

test/Modules/include-relative.c

@@ -3,7 +3,6 @@
 // RUN: cp -r %S/Inputs/include-relative %t/include-relative
 // RUN: cd %t
 // RUN: %clang_cc1 -fmodules -x c -verify -fmodules-cache-path=%t -I include-relative %s
-// REQUIRES: shell
 
 // expected-no-diagnostics
 

test/Modules/malformed.cpp

@@ -1,8 +1,6 @@
 // This test explicitly cd's to the test/Modules directory so that we can test
 // that filenames found via relative -I paths are printed correctly.
 //
-// REQUIRES: shell
-//
 // RUN: rm -rf %t
 // RUN: cd %S
 // RUN: not %clang_cc1 -fmodules -fmodules-cache-path=%t -I Inputs/malformed -DHEADER="a1.h" %s 2>&1 | FileCheck %s --check-prefix=CHECK-A
@@ -32,6 +30,6 @@
 void test() { f<int>(); }
 // Test that we use relative paths to name files within an imported module.
 //
-// CHECK-C: In module 'c' imported from malformed.cpp:14:
+// CHECK-C: In module 'c' imported from malformed.cpp:12:
 // CHECK-C: {{^}}Inputs/malformed/c.h:1:33: error: type 'int' cannot be used prior to '::'
 // CHECK-C: {{^}}malformed.cpp:[[@LINE-5]]:15: note: in instantiation of

test/Modules/modular_maps.cpp

@@ -11,9 +11,6 @@
 // RUN: %clang_cc1 -x objective-c++ -fmodules-cache-path=%t -fmodules -fmodule-map-file=Inputs/modular_maps/modulea-cwd.map -fmodule-map-file=Inputs/modular_maps/modulec-cwd.map -I Inputs/modular_maps %s -verify -fmodule-map-file-home-is-cwd
 // RxN: %clang_cc1 -x objective-c++ -fmodules-cache-path=%t -fmodules -fmodule-map-file=Inputs/modular_maps/modulec-cwd.map -fmodule-map-file=Inputs/modular_maps/modulea-cwd.map -I Inputs/modular_maps %s -verify -fmodule-map-file-home-is-cwd
 
-// chdir is unsupported on Lit internal runner.
-// REQUIRES: shell
-
 #include "common.h"
 #include "a.h"
 #include "b.h" // expected-error {{private header}}

test/Modules/relative-dep-gen.cpp

@@ -1,5 +1,3 @@
-// REQUIRES: shell
-//
 // RUN: cd %S
 // RUN: rm -rf %t
 // RUN: mkdir %t

test/PCH/headersearch.cpp

@@ -1,6 +1,5 @@
 // Test reading of PCH with changed location of original input files,
 // i.e. invoking header search.
-// REQUIRES: shell
 
 // Generate the original files:
 // RUN: rm -rf %t_orig %t_moved