The name of a destructured parameter can now be inferred from a JSDoc
comment. The name is only inferred if the number of top-level `@param`
tags in the JSDoc comment exactly matches the number of parameters.

Closes TypeStrong#1703

Three additional test cases have been added to the `function` tests in
the `converter` test directory. There is a test for when there are the
correct number of `@param` directives, and there are tests for the
cases where there is one too many or one too few `@param` directives.