Add Remote Mirror build presets

This allows us to build just the OS-specific presets for integration
and testing.

rdar://problem/27085666

Author: bitjammer

stdlib/public/SwiftRemoteMirror/CMakeLists.txt

@@ -1,6 +1,6 @@
 # libswiftRemoteMirror.dylib should not have runtime dependencies; it's
 # always built as a shared library.
-if(SWIFT_BUILD_DYNAMIC_STDLIB)
+if(SWIFT_BUILD_DYNAMIC_STDLIB OR SWIFT_BUILD_REMOTE_MIRROR)
   add_swift_library(swiftRemoteMirror SHARED TARGET_LIBRARY DONT_EMBED_BITCODE
       SwiftRemoteMirror.cpp
       LINK_LIBRARIES swiftReflection

utils/build-presets.ini

@@ -895,3 +895,103 @@ dash-dash
 skip-test-ios
 skip-test-tvos
 skip-test-osx
+
+#===------------------------------------------------------------------------===#
+# Remote Mirror Library
+#===------------------------------------------------------------------------===#
+
+[preset: mixin_remote_mirror_base]
+no-assertions
+swift-assertions
+
+dash-dash
+
+build-ninja
+release-debuginfo
+reconfigure
+compiler-vendor=apple
+swift-install-components=swift-remote-mirror
+install-destdir=%(install_destdir)s
+skip-build-cmark
+skip-build-llvm
+skip-build-llbuild
+skip-build-swiftpm
+skip-build-benchmarks
+install-swift
+install-prefix=/usr
+build-swift-examples=0
+build-swift-tools=0
+build-swift-static-stdlib=0
+build-swift-dynamic-stdlib=0
+build-swift-static-sdk-overlay=0
+build-swift-dynamic-sdk-overlay=0
+source-tree-includes-tests=0
+
+[preset: remote_mirror_ios_customization]
+
+dash-dash
+
+darwin-xcrun-toolchain=ios
+darwin-deployment-version-osx=10.0
+clang-user-visible-version=8.0
+skip-build-osx
+skip-test-osx
+skip-build-tvos
+skip-test-tvos
+skip-build-watchos
+skip-test-watchos
+swift-sdks=IOS
+swift-primary-variant-sdk=IOS
+swift-primary-variant-arch=arm64
+build-subdir=swift_remote_mirror_ios
+
+[preset: remote_mirror_ios]
+mixin-preset=
+    mixin_remote_mirror_base
+    remote_mirror_ios_customization
+
+[preset: remote_mirror_watchos_customization]
+
+dash-dash
+
+darwin-xcrun-toolchain=watchos
+darwin-deployment-version-osx=3.0
+clang-user-visible-version=8.0
+skip-build-osx
+skip-test-osx
+skip-build-tvos
+skip-test-tvos
+skip-build-ios
+skip-test-ios
+swift-sdks=WATCHOS
+swift-primary-variant-sdk=WATCHOS
+swift-primary-variant-arch=armv7k
+build-subdir=swift_remote_mirror_watchos
+
+[preset: remote_mirror_watchos]
+mixin-preset=
+    mixin_remote_mirror_base
+    remote_mirror_watchos_customization
+
+[preset: remote_mirror_tvos_customization]
+
+dash-dash
+
+darwin-xcrun-toolchain=tvos
+darwin-deployment-version-osx=10.9
+clang-user-visible-version=8.0
+skip-build-osx
+skip-test-osx
+skip-build-watchos
+skip-test-watchos
+skip-build-ios
+skip-test-ios
+swift-sdks=TVOS
+swift-primary-variant-sdk=TVOS
+swift-primary-variant-arch=arm64
+build-subdir=swift_remote_mirror_tvos
+
+[preset: remote_mirror_tvos]
+mixin-preset=
+    mixin_remote_mirror_base
+    remote_mirror_tvos_customization