Metrics backlog

[intjftw]

I'd like to clarify what metrics have been requested, and which have been done.

AST node / type level metrics:

• Afferent coupling
• Efferent coupling
• Cyclomatic complexity (McCabe)
• Bumpy road
• Lack of cohesion of methods (needs to be optimized)
• Parameter count of methods

File / module level metrics:

• Afferent coupling
• Efferent coupling
• Relational cohesion

Additional tasks:

• Parallel metrics calculation (partially done)
• Incremental parsing
• Test cases for each metric type (partially done)