presets: Update swift macos/linux preset

Create a common SwiftPM build preset configuration, and use this preset
in the Swift PM macos and linux presets to ensure the swift presets
builds the SwiftPM dependencies.

Author: bkhouri

utils/build-presets.ini

@@ -21,6 +21,26 @@ swift-install-components=back-deployment;compiler;clang-builtin-headers;libexec;
 swift-install-components=autolink-driver;back-deployment;compiler;clang-resource-dir-symlink;libexec;stdlib;sdk-overlay;static-mirror-lib;toolchain-tools;license;sourcekit-xpc-service;sourcekit-inproc;swift-remote-mirror;swift-remote-mirror-headers
 llvm-install-components=llvm-ar;llvm-ranlib;llvm-cov;llvm-profdata;IndexStore;clang;clang-resource-headers;compiler-rt;clangd;libclang;dsymutil;LTO;clang-features-file;lld
 
+[preset: mixin_swiftpm_build_base]
+mixin-preset=
+    buildbot_incremental_base
+    mixin_buildbot_install_components_with_clang
+
+libcxx
+llbuild
+swiftpm
+
+install-llvm
+install-static-linux-config
+install-swift
+install-llbuild
+install-swiftpm
+install-swiftsyntax
+swift-testing
+swift-testing-macros
+install-swift-testing
+install-swift-testing-macros
+
 [preset: mixin_buildbot_trunk_base]
 # Build standard library and SDK overlay for iOS device and simulator.
 ios
@@ -609,6 +629,7 @@ mixin-preset=
     buildbot_incremental_base
     lldb-smoketest,tools=RA
     mixin_buildbot_install_components_with_clang
+    mixin_swiftpm_build_base
 build-subdir=buildbot_incremental
 
 # We build release+asserts.
@@ -1077,6 +1098,7 @@ mixin-preset=
 mixin-preset=
     mixin_lightweight_assertions,no-stdlib-asserts
     mixin_linux_installation
+    mixin_swiftpm_build_base
 build-subdir=buildbot_linux
 lldb
 release
@@ -1094,7 +1116,6 @@ install-swiftformat
 reconfigure
 test-optimized
 skip-test-swiftdocc
-
 # gcc version on amazon linux 2 is too old to configure and build tablegen.
 # Use the clang that we install in the path for macros
 llvm-cmake-options=
@@ -1829,26 +1850,9 @@ skip-test-foundation
 #===------------------------------------------------------------------------===#
 # Base of SwiftPM and packages
 [preset: mixin_swiftpm_base]
-mixin-preset=
-    buildbot_incremental_base
-    mixin_buildbot_install_components_with_clang
+mixin-preset=mixin_swiftpm_build_base
 build-subdir=buildbot_incremental
 
-libcxx
-llbuild
-swiftpm
-
-install-llvm
-install-static-linux-config
-install-swift
-install-llbuild
-install-swiftpm
-install-swiftsyntax
-swift-testing
-swift-testing-macros
-install-swift-testing
-install-swift-testing-macros
-
 skip-test-swift
 
 # SwiftPM base