[dcl.init] doesn't seem to say what should happen if in direct initialization there are multiple arguments, i.e.:

int a(1, 2);

Direct initialization goes through [dcl.init]p17, which for direct initialization of an int goes to the last point, which says:

Otherwise, the initial value of the object being initialized is the (possibly converted) value of the initializer expression. [...]

What's the "initializer expression" for direct initialization? Missing is a limitation of the number of expressions in the expression-list and which expression is meant I guess.