Exclude Fortran-related files in the llvm-toolchain in Ruby standalones

* size on disk on linux-amd64, before: 334MB, after: 197M, 23.0: 183M.
* Diff of `tree -I include/` between 23.0 and after this commit
  (excluding include/ changes as they are verbose and use little space):
diff --git a/home/eregon/tmp/before b/home/eregon/tmp/after
index ab5a172b9c..d2b095115e 100644
--- a/home/eregon/tmp/before
+++ b/home/eregon/tmp/after
@@ -1,16 +1,17 @@
 .
 ├── 3rd_party_license_llvm-toolchain.txt
 ├── bin
+│   ├── amdgpu-arch
 │   ├── analyze-build
-│   ├── clang -> clang-15
+│   ├── clang -> clang-16
 │   ├── clang++ -> clang
-│   ├── clang-15
+│   ├── clang-16
 │   ├── clang-cl -> clang
 │   ├── clang-cpp -> clang
 │   ├── clang-format
 │   ├── clang-linker-wrapper
-│   ├── clang-nvlink-wrapper
 │   ├── clang-repl
+│   ├── clang-tblgen
 │   ├── dsymutil
 │   ├── intercept-build
 │   ├── ld64.lld -> lld
@@ -23,6 +24,7 @@
 │   ├── llvm-as
 │   ├── llvm-bitcode-strip -> llvm-objcopy
 │   ├── llvm-config
+│   ├── llvm-debuginfo-analyzer
 │   ├── llvm-debuginfod
 │   ├── llvm-debuginfod-find
 │   ├── llvm-diff
@@ -49,32 +51,39 @@
 │   ├── llvm-readobj
 │   ├── llvm-reduce
 │   ├── llvm-remark-size-diff
+│   ├── llvm-remarkutil
 │   ├── llvm-sim
 │   ├── llvm-strip -> llvm-objcopy
 │   ├── llvm-tapi-diff
 │   ├── llvm-tli-checker
+│   ├── nvptx-arch
 │   ├── opt
-│   ├── split-file
+│   ├── tblgen-lsp-server
 │   └── wasm-ld -> lld
 ├── lib
 │   ├── clang
-│   │   └── 15.0.6
+│   │   └── 16
 │   │       └── lib
-│   │           └── linux
-│   │               ├── clang_rt.crtbegin-x86_64.o
-│   │               ├── clang_rt.crtend-x86_64.o
-│   │               └── libclang_rt.builtins-x86_64.a
-│   ├── libclang-cpp.so -> libclang-cpp.so.15-4-gaeae49c2d7-bg8671e93c04
-│   ├── libclang-cpp.so.15-4-gaeae49c2d7-bg8671e93c04
+│   │           ├── linux
+│   │           │   ├── clang_rt.crtbegin-x86_64.o
+│   │           │   ├── clang_rt.crtend-x86_64.o
+│   │           │   └── libclang_rt.builtins-x86_64.a
+│   │           └── x86_64-unknown-linux-gnu
+│   │               ├── clang_rt.crtbegin.o
+│   │               ├── clang_rt.crtend.o
+│   │               ├── libclang_rt.builtins.a
+│   │               └── liborc_rt.a
+│   ├── libclang-cpp.so -> libclang-cpp.so.16-4-gad8c248269-bg39f02d0d6a
+│   ├── libclang-cpp.so.16-4-gad8c248269-bg39f02d0d6a
 │   ├── libear
 │   │   ├── config.h.in
 │   │   ├── ear.c
 │   │   └── __init__.py
-│   ├── libLLVM-15.0.6-4-gaeae49c2d7-bg8671e93c04.so -> libLLVM-15-4-gaeae49c2d7-bg8671e93c04.so
-│   ├── libLLVM-15-4-gaeae49c2d7-bg8671e93c04.so
-│   ├── libLLVM.so -> libLLVM-15-4-gaeae49c2d7-bg8671e93c04.so
-│   ├── libLTO.so -> libLTO.so.15-4-gaeae49c2d7-bg8671e93c04
-│   ├── libLTO.so.15-4-gaeae49c2d7-bg8671e93c04
+│   ├── libLLVM-16.0.1-4-gad8c248269-bg39f02d0d6a.so -> libLLVM-16-4-gad8c248269-bg39f02d0d6a.so
+│   ├── libLLVM-16-4-gad8c248269-bg39f02d0d6a.so
+│   ├── libLLVM.so -> libLLVM-16-4-gad8c248269-bg39f02d0d6a.so
+│   ├── libLTO.so -> libLTO.so.16-4-gad8c248269-bg39f02d0d6a
+│   ├── libLTO.so.16-4-gad8c248269-bg39f02d0d6a
 │   ├── libscanbuild
 │   │   ├── analyze.py
 │   │   ├── arguments.py
@@ -107,4 +116,4 @@
     │   └── README.md
     └── README.md

-13 directories, 95 files
+14 directories, 103 files

Author: eregon

mx.truffleruby/mx_truffleruby.py

@@ -246,7 +246,7 @@ def ruby_maven_deploy_public(args):
 standalone_dependencies_common = {
     'LLVM Runtime Core': ('lib/sulong', []),
     'LLVM Runtime Native': ('lib/sulong', []),
-    'LLVM.org toolchain': ('lib/llvm-toolchain', []),
+    'LLVM.org toolchain': ('lib/llvm-toolchain', ['bin/flang-*', 'bin/f18*', 'lib/libFortran*', 'include/flang']),
 }
 
 mx_sdk_vm.register_graalvm_component(mx_sdk_vm.GraalVmLanguage(

spec/truffle/standalone_spec.rb

@@ -0,0 +1,21 @@
+# Copyright (c) 2023 Oracle and/or its affiliates. All rights reserved. This
+# code is released under a tri EPL/GPL/LGPL license. You can use it,
+# redistribute it and/or modify it under the terms of the:
+#
+# Eclipse Public License version 2.0, or
+# GNU General Public License version 2, or
+# GNU Lesser General Public License version 2.1.
+# OTHER DEALINGS IN THE SOFTWARE.
+
+require_relative '../ruby/spec_helper'
+
+describe "The standalone" do
+  llvm_toolchain = "#{Truffle::Boot.ruby_home}/lib/llvm-toolchain"
+  guard -> { Dir.exist? llvm_toolchain } do
+    it "should not include Fortran-related files in the toolchain" do
+      Dir.glob("#{llvm_toolchain}/bin/flang*").should.empty?
+      Dir.glob("#{llvm_toolchain}/lib/libFortran*").should.empty?
+      Dir.glob("#{llvm_toolchain}/include/flang/*").should.empty?
+    end
+  end
+end