[android] Switch armv7 vendor to 'unknown' in target triple to match other arches

Recent changes have made 'none' and 'unknown' not interchangeable anymore, so
standardize on 'unknown' for armv7 too.

Author: finagolfin

cmake/modules/SwiftConfigureSDK.cmake

@@ -297,9 +297,9 @@ macro(configure_sdk_unix name architectures)
         else()
           message(SEND_ERROR "Couldn't find SWIFT_SDK_ANDROID_ARCH_armv7_PATH")
         endif()
-        set(SWIFT_SDK_ANDROID_ARCH_${arch}_TRIPLE "armv7-none-linux-androideabi")
+        set(SWIFT_SDK_ANDROID_ARCH_${arch}_TRIPLE "armv7-unknown-linux-androideabi")
         # The Android ABI isn't part of the module triple.
-        set(SWIFT_SDK_ANDROID_ARCH_${arch}_MODULE "armv7-none-linux-android")
+        set(SWIFT_SDK_ANDROID_ARCH_${arch}_MODULE "armv7-unknown-linux-android")
       elseif("${arch}" STREQUAL "aarch64")
         set(SWIFT_SDK_ANDROID_ARCH_${arch}_NDK_TRIPLE "aarch64-linux-android")
         set(SWIFT_SDK_ANDROID_ARCH_${arch}_ALT_SPELLING "aarch64")

docs/Android.md

@@ -103,7 +103,7 @@ $ NDK_PATH="path/to/android-ndk21"
 $ build/Ninja-ReleaseAssert/swift-linux-x86_64/bin/swiftc \     # The Swift compiler built in the previous step.
                                                                 # The location of the tools used to build Android binaries
     -tools-directory ${NDK_PATH}/toolchains/llvm/prebuilt/linux-x86_64/bin/ \
-    -target armv7a-none-linux-androideabi \                     # Targeting android-armv7, and supply the path to libgcc.
+    -target armv7a-unknown-linux-androideabi \                  # Targeting android-armv7, and supply the path to libgcc.
     -L ${NDK_PATH}/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/armv7-a \
     -sdk ${NDK_PATH}/platforms/android-21/arch-arm \            # Use the same architecture and API version as you used to build the stdlib in the previous step.
     hello.swift

test/Interop/Cxx/class/constructors-irgen.swift

@@ -1,7 +1,7 @@
 // Target-specific tests for C++ constructor call code generation.
 
 // RUN: %swift -module-name Swift -target x86_64-apple-macosx10.9 -dump-clang-diagnostics -I %S/Inputs -enable-cxx-interop -emit-ir %s -parse-stdlib -parse-as-library -disable-legacy-type-info | %FileCheck %s -check-prefix=ITANIUM_X64
-// RUN: %swift -module-name Swift -target armv7-none-linux-androideabi -dump-clang-diagnostics -I %S/Inputs -enable-cxx-interop -emit-ir %s -parse-stdlib -parse-as-library -disable-legacy-type-info | %FileCheck %s -check-prefix=ITANIUM_ARM
+// RUN: %swift -module-name Swift -target armv7-unknown-linux-androideabi -dump-clang-diagnostics -I %S/Inputs -enable-cxx-interop -emit-ir %s -parse-stdlib -parse-as-library -disable-legacy-type-info | %FileCheck %s -check-prefix=ITANIUM_ARM
 // RUN: %swift -module-name Swift -target x86_64-unknown-windows-msvc -dump-clang-diagnostics -I %S/Inputs -enable-cxx-interop -emit-ir %s -parse-stdlib -parse-as-library -disable-legacy-type-info | %FileCheck %s -check-prefix=MICROSOFT_X64
 
 import Constructors

test/Parse/ConditionalCompilation/armAndroidTarget.swift

@@ -1,5 +1,5 @@
-// RUN: %swift -typecheck %s -verify -target armv7-none-linux-androideabi -disable-objc-interop -parse-stdlib
-// RUN: %swift-ide-test -test-input-complete -source-filename=%s -target armv7-none-linux-androideabi
+// RUN: %swift -typecheck %s -verify -target armv7-unknown-linux-androideabi -disable-objc-interop -parse-stdlib
+// RUN: %swift-ide-test -test-input-complete -source-filename=%s -target armv7-unknown-linux-androideabi
 
 #if os(Linux)
 // This block should not parse.

test/lit.cfg

@@ -1296,7 +1296,7 @@ elif (run_os in ['linux-gnu', 'linux-gnueabihf', 'freebsd', 'openbsd', 'windows-
     config.target_ld = "ld -L%r" % (make_path(test_resource_dir, config.target_sdk_name))
 elif run_os == 'linux-androideabi' or run_os == 'linux-android':
     # The module triple for Android ARMv7 seems to be canonicalized in LLVM
-    # to be armv7-none-linux-android, without the "eabi" bit. Let's remove the
+    # to be armv7-unknown-linux-android, without the "eabi" bit. Let's remove the
     # same bit from the substitutions so the tests pass correctly.
     target_specific_module_triple = re.sub(r'androideabi', 'android',
                                            target_specific_module_triple)