fix: quote OUTPUT_DIR in debug_symbols shell commands for paths with spaces

The synced debug_symbols.bzl from upstream didn't quote OUTPUT_DIR
references in shell commands, causing failures for targets with spaces
in their bundle names (e.g. ext_with_space). The open-source repo has
test targets with spaces that upstream doesn't.

Author: luispadron

apple/internal/partials/debug_symbols.bzl

@@ -207,10 +207,10 @@ def _lipo_command_for_dsyms(
             found_binary_paths.append(dsym_binary.path)
 
     lipo_command = (
-        "mkdir -p ${{OUTPUT_DIR}}/Contents/Resources/DWARF && " +
+        "mkdir -p \"${{OUTPUT_DIR}}/Contents/Resources/DWARF\" && " +
         "/usr/bin/lipo " +
         "-create {found_binary_inputs} " +
-        "-output ${{OUTPUT_DIR}}/Contents/Resources/DWARF/{main_binary_basename}"
+        "-output \"${{OUTPUT_DIR}}/Contents/Resources/DWARF/{main_binary_basename}\""
     ).format(
         found_binary_inputs = " ".join([shell.quote(path) for path in found_binary_paths]),
         main_binary_basename = main_binary_basename,
@@ -414,13 +414,13 @@ def _bundle_dsym_files(
         # We expect any given Info.plist from the splits to be as good as any, no need to merge
         # them, but we can do that with plisttool if and when it's needed.
         plist_command = (
-            "cp {dsym_plist_path} ${{OUTPUT_DIR}}/Contents/Info.plist"
+            "cp \"{dsym_plist_path}\" \"${{OUTPUT_DIR}}/Contents/Info.plist\""
         ).format(
             dsym_plist_path = dsym_inputs.values()[0].path + "/Contents/Info.plist",
         )
 
         command = (
-            "rm -rf ${OUTPUT_DIR} && " +
+            "rm -rf \"${OUTPUT_DIR}\" && " +
             lipo_command + " && " +
             ditto_command + " && " +
             plist_command
@@ -458,7 +458,7 @@ def _bundle_dsym_files(
             dsym_plist_path = dsym_plist.path,
         )
 
-        command = "rm -rf ${OUTPUT_DIR} && " + lipo_command + " && " + plist_command
+        command = "rm -rf \"${OUTPUT_DIR}\" && " + lipo_command + " && " + plist_command
 
         # Put the tree artifact dSYMs in a subdirectory to avoid conflicts with any legacy dSYMs
         # provided through existing APIs such as --output_groups=+dsyms; note that legacy "flat