Separate out StatementSupport.applyCopyPolicy()
We have two concerns here:
- copying statements for inference purposes and lazily instantiating
them there
- creating EffectiveStatement copies.
StatementSupport.copyPolicy() and StatementContextBase.copyAsChildOf()
take care of the first part.
StatementSupport.effectiveCopyOf() and
StatementContextBase.asEffectiveChildOf() are responsible for the
second concern. For now they are not wired, but concentrate remaining
FIXMEs for direction we need to in.
JIRA: YANGTOOLS-1195
Change-Id: I3b0a63b4620cf933ce104dc37e9db8678c71aba5
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>