merge untyped and typed evaluation trees

[alex-dukhno]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 853943301

• 128 of 156 (82.05%) changed or added relevant lines in 9 files are covered.
• 5 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.6%) to 66.676%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
sql_engine/data_manipulation/typed_tree/src/lib.rs	9	13	69.23%
sql_engine/query_analyzer/src/tree_builder.rs	55	59	93.22%
sql_engine/query_processing/type_inference/src/lib.rs	17	22	77.27%
node_engine/src/transaction_manager.rs	33	48	68.75%

Files with Coverage Reduction	New Missed Lines	%
node_engine/src/transaction_manager.rs	1	68.55%
types/src/lib.rs	4	80.0%

Totals
Change from base Build 853901569:	-0.6%
Covered Lines:	2403
Relevant Lines:	3604

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💛 - Coveralls