Remap query plan arguments to the root object

[pe4cey]

• Re-enable skipped boltMapping tests

Before:

After:

Changelog: In query plan: show the label that has been scanned

[oskarhane]

Something strange happens with the total dbHits.
On 3.0: Cypher version: CYPHER 3.3, planner: COST, runtime: INTERPRETED. 1443 total db hits in 2 ms.
On this PR: Cypher version: CYPHER 3.3, planner: COST, runtime: INTERPRETED. 00025313200506677172 total db hits in 4 ms.

Query (with movie dataset):

PROFILE MATCH (n) WHERE EXISTS(n.name) RETURN DISTINCT "node" as entity, n.name AS name LIMIT 25 UNION ALL MATCH ()-[r]-() WHERE EXISTS(r.name) RETURN DISTINCT "relationship" AS entity, r.name AS name LIMIT 25

[pe4cey]

@oskarhane updated