Doug Gregor 423c1f09da [Type checker] Use call argument matching even with type variables on the left-hand side. ...

Rather than using a specialized matching rule in the type checker that
depends on having default arguments in types, use call argument
matching consistently.

Note #1: This (correctly) breaks some existing code that depends on
inferring a parameter type of () for a single-argument parameter from
a no-argument function type().

Note #2: This pessimizes a code completion test, where the code
completion engine seems to depend on some quirks of argument
matching. The "type relationship" matching needs non-trivial work.

2016-06-29 20:43:42 -07:00

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