Wrong location for "not a member" error when constructing a struct literal

[vpanteleev-sym]

struct S { int x; }

void test() {
	auto s = S(
		y:
		1
	);
}

Output:

test.d(6): Error: `y` is not a member of `S`

The error is reported on the line with the value (1), but the undefined identifier in question is actually on the previous line.

[Ay1nDas]

I found the reason for this bug:
The compiler uses the getLoc(j) function to get the location of j th argument.
Where getLoc() is a lambda function. Currently getLoc() looks like: (i) => (*exp.arguments)[i].loc
This (*exp.arguments) is the problem. As it stores the location of arguments (i.e. 1 for this expression) and (*exp.names) store the location of the names (i.e. y for this expression).

So, we need to use (i) => (*exp.names)[i].loc to get the location of y. But, (*exp.names) doesn't support .loc
Is, there any other way to get the location or Do we need to create .loc for (*exp.names) in order to solve this issue.