8031569: Refactor javac scope implementation to enable lazy imports Summary: Introducing an internal API for Scope; rewriting ImportScopes to extend CompoundScopes. Reviewed-by: mcimadamore, jjg, jfranck Contributed-by: maurizio.cimadamore@oracle.com, jan.lahoda@oracle.com

<?xml version="1.0" encoding="UTF-8"?>+
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<project version="4">+
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  <component name="VcsDirectoryMappings">+
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    <mapping directory="$PROJECT_DIR$" vcs="hg4idea" />+
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  </component>+
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</project>+
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