Organize imports adds config script alias import

[eric-milles]

Consider the following:
config.groovy:

withConfig(configuration) {
  imports {
    star 'groovy.transform'
    alias 'Regexp', 'java.util.regex.Pattern'
  }
}

One.groovy:

@Canonical
class One {
  String string
  Number number
  private Regexp pattern
  void setPattern(Regexp pattern) {
    this.pattern = pattern
  }
}

Tests.groovy:

@CompileStatic
final class Tests {
  @Test
  void testCtors() {
    def one = new One('value') // error: Cannot find matching method ...
    def two = new Two('value')
  }
}
@Canonical @CompileStatic
class Two {
  String value
}

Organize imports (Ctrl+Shift+O) on Tests.groovy is adding the import statement import java.util.regex.Pattern as Regexp to the source.

[eric-milles]

GROOVY-8399 is causing the alias import to be added twice to rewriter but it is removed only once, so it ends up being added to source.