Rustc panicked when init undefined field

[sunchao]

When building the following code:

struct S<'a> {
  a: &'a str
}

impl<'a> S<'a> {
  pub fn new(input: &'a str) -> S<'a> {
    S {
      a: input,
      b: &char
    }
  }
}

RUST_BACKTRACE=1 cargo build returns the following error message, which actually indicates the error, but also has a internal compiler error:

error[E0560]: struct `S<'_>` has no field named `b`
  --> src/main.rs:11:7
   |
11 |       b: &char
   |       ^^ `S<'_>` does not have this field

error: internal compiler error: ../src/librustc_typeck/check/mod.rs:4396: unexpected definition: PrimTy(TyChar)

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

note: run with `RUST_BACKTRACE=1` for a backtrace

thread 'rustc' panicked at 'Box<Any>', ../src/librustc_errors/lib.rs:423
stack backtrace:
   1:        0x104bd2f7a - std::sys::imp::backtrace::tracing::imp::write::hbea47d9dd19b523c
   2:        0x104be026f - std::panicking::default_hook::{{closure}}::h6875a2976258b020
   3:        0x104bdfe1d - std::panicking::default_hook::h88ffbc5922643264
   4:        0x104be0736 - std::panicking::rust_panic_with_hook::hc790e47d4ecc86cd
   5:        0x1049a683a - std::panicking::begin_panic::h264cdc75d51b518b
   6:        0x1049b94c4 - rustc_errors::Handler::bug::h620f7270292f0095
   7:        0x101573c5c - rustc::session::opt_span_bug_fmt::{{closure}}::h4a9b70c3df8b4b3a
   8:        0x101573a69 - rustc::session::opt_span_bug_fmt::h7d83586c6e2c7ae6
   9:        0x1015735ea - rustc::session::bug_fmt::he2d2f00a4afa9d1e
  10:        0x100db178d - rustc_typeck::check::FnCtxt::instantiate_value_path::h4229ac945aebfa55
  11:        0x100d9fc31 - rustc_typeck::check::FnCtxt::check_expr_kind::hfeeca7568cc99087
  12:        0x100d9e86d - rustc_typeck::check::FnCtxt::check_expr_with_expectation_and_lvalue_pref::h5d7f5141d7386bb8
  13:        0x100da266a - rustc_typeck::check::FnCtxt::check_expr_kind::hfeeca7568cc99087
  14:        0x100d9e86d - rustc_typeck::check::FnCtxt::check_expr_with_expectation_and_lvalue_pref::h5d7f5141d7386bb8
  15:        0x100d9c7fc - rustc_typeck::check::FnCtxt::check_expr_struct_fields::h834dbf10da936de9
  16:        0x100da180d - rustc_typeck::check::FnCtxt::check_expr_kind::hfeeca7568cc99087
  17:        0x100d9e86d - rustc_typeck::check::FnCtxt::check_expr_with_expectation_and_lvalue_pref::h5d7f5141d7386bb8
  18:        0x100db04ae - rustc_typeck::check::FnCtxt::check_block_with_expected::he90dd72b6855e5e4
  19:        0x100d9ed93 - rustc_typeck::check::FnCtxt::check_expr_kind::hfeeca7568cc99087
  20:        0x100d9e86d - rustc_typeck::check::FnCtxt::check_expr_with_expectation_and_lvalue_pref::h5d7f5141d7386bb8
  21:        0x100d85663 - rustc_typeck::check::check_fn::h96bd864b4d4fc711
  22:        0x100d841f7 - rustc_typeck::check::check_bare_fn::h87386ea43f4e272e
  23:        0x100d8705c - rustc_typeck::check::check_item_body::h1e039ede2f960fb9
  24:        0x100d81dad - rustc_typeck::check::check_item_bodies::hd22adb7703cc56d7
  25:        0x100def9de - rustc_typeck::check_crate::h92f6bdfe03b6afba
  26:        0x10038a4d0 - rustc_driver::driver::phase_3_run_analysis_passes::{{closure}}::hd97ec26bf3a98036
  27:        0x100372404 - rustc_driver::driver::phase_3_run_analysis_passes::h6d446abb74c09795
  28:        0x10036286a - rustc_driver::driver::compile_input::h8e119234b60571d5
  29:        0x1003a9a4b - rustc_driver::run_compiler::h57c4f233cd1a0c04
  30:        0x1002c8088 - std::panicking::try::do_call::hf679f17bf3b43b0b
  31:        0x104be2cea - __rust_maybe_catch_panic
  32:        0x1002eb18f - <F as alloc::boxed::FnBox<A>>::call_box::h21b5b32059700da6
  33:        0x104bdf3b4 - std::sys::imp::thread::Thread::new::thread_start::h8084b1107992ae5b
  34:     0x7fffe5876aaa - _pthread_body
  35:     0x7fffe58769f6 - _pthread_start

My rustc --version --verbose output:

rustc 1.15.0-nightly (daf8c1dfc 2016-12-05)
binary: rustc
commit-hash: daf8c1dfce3b448fc581cc319f64632ec22bd0e1
commit-date: 2016-12-05
host: x86_64-apple-darwin
release: 1.15.0-nightly
LLVM version: 3.9

[petrochenkov]

Duplicate of #38155, fixed in #38154