[android][test] Enable several C++ Interop and other tests

Also, fix lit.cfg for running the test suite natively in Android and mark one
SILOptimizer executable_test as such.

Author: finagolfin

test/Concurrency/Runtime/actor_assert_precondition_executor_checkIsolated_dispatch_dispatchMain_swift_6_mode.swift

@@ -22,6 +22,8 @@ import Darwin
 import Glibc
 #elseif canImport(Musl)
 import Musl
+#elseif canImport(Android)
+import Android
 #endif
 
 @main struct Main {

test/Interop/Cxx/class/custom-new-operator-irgen.swift

@@ -1,7 +1,5 @@
 // RUN: %target-swiftxx-frontend -I %S/Inputs %s -emit-ir | %FileCheck %s
 
-// XFAIL: OS=linux-android, OS=linux-androideabi
-
 import CustomNewOperator
 
 var x = callsCustomNew()

test/Interop/Cxx/class/memory-layout-silgen.swift

@@ -1,8 +1,5 @@
 // RUN: %target-swiftxx-frontend -I %S/Inputs -emit-ir -o - %s | %FileCheck %s
 
-// XFAIL: OS=linux-android
-// XFAIL: OS=linux-androideabi
-
 import MemoryLayout
 
 var v = PrivateMemberLayout()

test/Interop/Cxx/foreign-reference/move-only-irgen.swift

@@ -1,6 +1,4 @@
 // RUN: %target-swift-emit-ir %s -I %S/Inputs -enable-experimental-cxx-interop -validate-tbd-against-ir=none -disable-llvm-verify -Xcc -fignore-exceptions -disable-availability-checking | %FileCheck %s
-//
-// XFAIL: OS=linux-android, OS=linux-androideabi
 
 import MoveOnly
 

test/Interop/Cxx/foreign-reference/move-only-module-interface.swift

@@ -1,6 +1,4 @@
 // RUN: %target-swift-ide-test -print-module -module-to-print=MoveOnly -I %S/Inputs -source-filename=x -enable-experimental-cxx-interop | %FileCheck %s
-//
-// XFAIL: OS=linux-android, OS=linux-androideabi
 
 // CHECK: class MoveOnly {
 // CHECK-NOT: init

test/Interop/Cxx/foreign-reference/move-only-silgen.swift

@@ -1,6 +1,4 @@
 // RUN: %target-swift-emit-silgen %s -I %S/Inputs -enable-experimental-cxx-interop -disable-availability-checking | %FileCheck %s
-//
-// XFAIL: OS=linux-android, OS=linux-androideabi
 
 import MoveOnly
 

test/Interop/Cxx/foreign-reference/nullable-module-interface.swift

@@ -1,6 +1,4 @@
 // RUN: %target-swift-ide-test -print-module -module-to-print=Nullable -I %S/Inputs -source-filename=x -enable-experimental-cxx-interop | %FileCheck %s
-//
-// XFAIL: OS=linux-android, OS=linux-androideabi
 
 // CHECK: class Empty {
 // CHECK:   func test() -> Int32

test/Interop/Cxx/foreign-reference/pod-irgen.swift

@@ -1,6 +1,4 @@
 // RUN: %target-swift-emit-ir %s -I %S/Inputs -enable-experimental-cxx-interop -validate-tbd-against-ir=none -disable-llvm-verify -Xcc -fignore-exceptions -disable-availability-checking | %FileCheck %s
-//
-// XFAIL: OS=linux-android, OS=linux-androideabi
 
 import POD
 

test/Interop/Cxx/foreign-reference/pod-module-interface.swift

@@ -1,6 +1,4 @@
 // RUN: %target-swift-ide-test -print-module -module-to-print=POD -I %S/Inputs -source-filename=x -enable-experimental-cxx-interop | %FileCheck %s
-//
-// XFAIL: OS=linux-android, OS=linux-androideabi
 
 // CHECK: class Empty {
 // CHECK-NOT: init

test/Interop/Cxx/foreign-reference/pod-silgen.swift

@@ -1,6 +1,4 @@
 // RUN: %target-swift-emit-silgen %s -I %S/Inputs -enable-experimental-cxx-interop -disable-availability-checking | %FileCheck %s
-//
-// XFAIL: OS=linux-android, OS=linux-androideabi
 
 import POD
 

test/Interop/Cxx/foreign-reference/reference-counted-irgen.swift

@@ -1,5 +1,4 @@
 // RUN: %target-swift-emit-irgen %s -I %S/Inputs -cxx-interoperability-mode=default -Xcc -fignore-exceptions -disable-availability-checking | %FileCheck %s
-// XFAIL: OS=linux-android, OS=linux-androideabi
 // XFAIL: OS=windows-msvc
 
 import ReferenceCounted

test/Interop/Cxx/foreign-reference/reference-counted-silgen.swift

@@ -1,6 +1,4 @@
 // RUN: %target-swift-emit-silgen %s -I %S/Inputs -enable-experimental-cxx-interop -disable-availability-checking | %FileCheck %s
-//
-// XFAIL: OS=linux-android, OS=linux-androideabi
 
 import POD
 import ReferenceCounted

test/Interop/Cxx/foreign-reference/singleton-irgen.swift

@@ -1,6 +1,4 @@
 // RUN: %target-swift-emit-ir %s -I %S/Inputs -enable-experimental-cxx-interop -validate-tbd-against-ir=none -disable-llvm-verify -Xcc -fignore-exceptions -disable-availability-checking | %FileCheck %s
-//
-// XFAIL: OS=linux-android, OS=linux-androideabi
 
 import Singleton
 

test/Interop/Cxx/foreign-reference/singleton-module-interface.swift

@@ -1,6 +1,4 @@
 // RUN: %target-swift-ide-test -print-module -module-to-print=Singleton -I %S/Inputs -source-filename=x -enable-experimental-cxx-interop | %FileCheck %s
-//
-// XFAIL: OS=linux-android, OS=linux-androideabi
 
 // CHECK: class DeletedDtor {
 // CHECK-NOT: init

test/Interop/Cxx/foreign-reference/singleton-silgen.swift

@@ -1,6 +1,4 @@
 // RUN: %target-swift-emit-silgen %s -I %S/Inputs -enable-experimental-cxx-interop -disable-availability-checking | %FileCheck %s
-//
-// XFAIL: OS=linux-android, OS=linux-androideabi
 
 import Singleton
 

test/Interop/SwiftToCxx/core/unsigned-return-type-no-zext.cpp

@@ -4,7 +4,6 @@
 // RUN: %FileCheck %s < %t/ir.ll
 
 // UNSUPPORTED: OS=windows-msvc
-// XFAIL: OS=linux-android, OS=linux-androideabi
 
 unsigned char getEnumTagi8(void *p);
 unsigned getEnumTagi32(void *p);

test/Interop/SwiftToCxx/stdlib/stdlib-in-cxx-no-diagnostics-generated-header.cpp

@@ -7,8 +7,6 @@
 
 // RUN: %target-interop-build-clangxx -std=gnu++20 -fsyntax-only -c %t/test-stdlib.cpp -I %t -Wall -Werror -Werror=ignored-attributes -Wno-error=unused-command-line-argument
 
-// XFAIL: OS=linux-android, OS=linux-androideabi
-
 //--- print-string.swift
 
 public func printString(_ s: String) {

test/Interop/SwiftToCxxToSwift/hide-swift-module-namespace-in-swift.swift

@@ -11,8 +11,6 @@
 
 // RUN: %target-swift-ide-test -print-module -module-to-print=SwiftToCxxTest -I %t -source-filename=x -enable-experimental-cxx-interop -Xcc -DSWIFT_CXX_INTEROP_HIDE_SWIFT_ERROR | %FileCheck --check-prefix=INTERFACE %s
 
-// XFAIL: OS=linux-android, OS=linux-androideabi
-
 //--- header.h
 #ifndef FIRSTPASS
 #include "swiftMod.h"

test/Interop/SwiftToCxxToSwift/import-swift-class-back-to-swift.swift

@@ -10,7 +10,6 @@
 // RUN: %target-swift-frontend -typecheck %t/swiftMod.swift -typecheck -module-name SwiftMod -I %t -enable-experimental-cxx-interop -Xcc -DSWIFT_CXX_INTEROP_HIDE_SWIFT_ERROR -DSECOND_PASS -emit-sil -o - | %FileCheck --check-prefix=SIL %s
 
 // UNSUPPORTED: OS=windows-msvc
-// XFAIL: OS=linux-android, OS=linux-androideabi
 
 //--- header.h
 #ifndef FIRSTPASS

test/Interpreter/llvm_link_time_opt.swift

@@ -1,8 +1,6 @@
 // UNSUPPORTED: OS=windows-msvc
 // static library is not well supported yet on Windows
 
-// XFAIL: OS=linux-android, OS=linux-androideabi
-
 // UNSUPPORTED: OS=xros
 
 // For LTO, the linker dlopen()'s the libLTO library, which is a scenario that

test/SILOptimizer/stack-promotion-crash.swift

@@ -6,6 +6,8 @@
 // RUN: %target-codesign %t/a.out
 // RUN: %target-run %t/a.out | %FileCheck %s
 
+// REQUIRES: executable_test
+
 //--- module.modulemap
 
 module CModule {

test/lit.cfg

@@ -177,6 +177,10 @@ if platform.system() == 'Darwin':
 # NOTE: this mirrors the kIsWindows from lit.lit.TestRunner in LLVM
 kIsWindows = platform.system() == 'Windows'
 
+# The global environment in Android sets ANDROID_DATA, so if that variable is
+# set, we are probably running in Android.
+kIsAndroid = 'ANDROID_DATA' in os.environ
+
 # testFormat: The test format to use to interpret tests.
 
 # Choose between lit's internal shell pipeline runner and a real shell.  If
@@ -417,6 +421,11 @@ if run_os.startswith('wasi'):
 # Parse the host triple
 (host_cpu, host_vendor, host_os, host_vers) = re.match('([^-]+)-([^-]+)-([^0-9-]+)(.*)', config.host_triple).groups()
 
+# Manually set the host OS on Android, because the host OS from the triple says
+# `linux`.
+if kIsAndroid:
+    host_os = 'android'
+
 if f"{host_cpu}-{host_vendor}-{host_os}" == f"{run_cpu}-{run_vendor}-{run_os}":
     # Ignore the version on purpose, to account for scenario
     # in which the compiler has a different deployment target
@@ -1118,10 +1127,6 @@ elif platform.system() == 'Linux':
     if swift_test_mode != 'only_non_executable':
       config.available_features.add('swift_interpreter')
 
-# The global environment in Android sets ANDROID_DATA, so if that variable is
-# set, we are probably running in Android.
-kIsAndroid = 'ANDROID_DATA' in os.environ
-
 # swift-remoteast-test requires the ability to compile and run code
 # for the system we compiled the swift-remoteast-test executable on.
 # This is potentially a stronger constraint than just "can we interpret",
@@ -2428,8 +2433,12 @@ elif not kIsWindows and not run_os == 'wasi':
         lit_config.note('Testing with the just-built libraries')
 
     lit_config.note('Library load path: {0}'.format(os.path.pathsep.join(target_stdlib_path)))
+    env_path = "/usr/bin/env "
+    # Android doesn't have /usr/bin/
+    if kIsAndroid:
+      env_path = "/bin/env "
     config.target_run = (
-        "/usr/bin/env " +
+        env_path +
         construct_library_path_env(target_stdlib_path) +
         config.target_run)