ICE: parenthesized parameters cannot appear in ExprPath

[matt36]

Code

https://play.rust-lang.org/?gist=2eb5e614583b7612d132678938efd615&version=nightly&backtrace=0

enum Foo {
    X,
}

enum Bar {
    Y(Foo),
}

struct Entry {
    op: Bar,
}

macro_rules! entry {
    ($op:path) => (
        Entry { op: $op }
    )
}

static TABLE: [Entry; 1] = [
    entry!(Bar::Y(Foo::X)),
];

Result

error[E0573]: expected type, found variant `Foo::X`
  --> <anon>:20:19
   |
20 |     entry!(Bar::Y(Foo::X)),
   |     --------------^^^^^^--
   |     |             |
   |     |             not a type
   |     in this macro invocation

error: internal compiler error: /buildslave/rust-buildbot/slave/nightly-dist-rustc-linux/build/src/librustc_typeck/check/mod.rs:4507: parenthesized parameters cannot appear in ExprPath
  --> <anon>:15:25
   |
15 |         Entry { op: $op }
   |                         ^
...
20 |     entry!(Bar::Y(Foo::X)),
   |     ---------------------- in this macro invocation

note: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports

thread 'rustc' panicked at 'Box<Any>', /buildslave/rust-buildbot/slave/nightly-dist-rustc-linux/build/src/librustc_errors/lib.rs:376
note: Run with `RUST_BACKTRACE=1` for a backtrace.

Meta

Same result on these versions of rust currently available on play.rust-lang.org

rustc 1.15.1 (021bd294c 2017-02-08)
rustc 1.16.0-beta.1 (5276ba72e 2017-01-31)
rustc 1.17.0-nightly (24a70eb59 2017-02-09)

[petrochenkov]

Duplicate of #39687