a stress test for the standard page cache
should be reusable for other page caches
Merge pull request #3019 from neo4j/pagecachestresstest

a stress test for the standard page cache
Add rewriters for normalizing WITH and RETURN
Normalize WITH and RETURN clauses before check
Ensure correct scoping of identifiers during checking
Add ScopeTreeTest
Supply SemanticState to AST rewriter
Initial identifer namespacing work