This adds `-parse-as-library` to the example targets which use `@main`
resulting in a compile failure as `@main` is not processed unless the
target is marked as library.

This adds `-parse-as-library` to the example targets which use `@main`
resulting in a compile failure as `@main` is not processed unless the
target is marked as library.

Authored-by: Saleem Abdulrasool <compnerd@compnerd.org>

* 'main' of github.com:apple/swift-argument-parser: (114 commits)
  Fix `AsyncParseableCommand` hierarchy (apple#436)
  Add experimental manual page generation (apple#332)
  Improving edit distance string extension (apple#446)
  List valid options in error messages for enum array argument (apple#445)
  Remove LinuxMain.swift (apple#367)
  Hide hidden subcommands from completions (apple#443)
  Update changelog for 1.1.2 release (apple#441)
  Fix error message for @option array without values (apple#435)
  Fix Repeat's endless printing (apple#437)
  build: statically link ArgumentParserToolInfo always (apple#424)
  Update changelog for the 1.1.1 release (apple#428)
  build: complete the changes from apple#423 (apple#425)
  Remove platform requirement from Package.swift (apple#427)
  build: repair the build after apple#404 (apple#423)
  Fix broken links/incorrect variance calculation (apple#422)
  Update changelog for the 1.1.0 release (apple#421)
  Update documentation (apple#420)
  Make `@OptionGroup(visibility:)` a public API (apple#419)
  Support an `async` entry point for commands (apple#404)
  Fix a typo and template links (apple#418)
  ...