Use the correct/standard features to provide the llvm-ml64 alias

Author: ericastor

llvm/tools/llvm-ml/CMakeLists.txt

@@ -23,5 +23,4 @@ add_llvm_tool(llvm-ml
   GENERATE_DRIVER
   )
 
-llvm_add_tool_symlink(LLD llvm-ml64 llvm-ml ALWAYS_GENERATE)
-llvm_install_symlink(LLD llvm-ml64 llvm-ml ALWAYS_GENERATE)
+add_llvm_tool_symlink(llvm-ml64 llvm-ml)

utils/bazel/llvm-project-overlay/llvm/BUILD.bazel

@@ -5116,12 +5116,9 @@ llvm_driver_cc_binary(
     deps = [":llvm-ml-lib"],
 )
 
-genrule(
-    name = "gen_llvm-ml64",
-    srcs = [":llvm-ml"],
-    outs = ["llvm-ml64"],
-    cmd = "ln -sf $$(basename $<) $@",
-    output_to_bindir = 1,
+binary_alias(
+    name = "llvm-ml64",
+    binary = ":llvm-ml",
 )
 
 cc_binary(