move auxiliary builds to a test-relative aux

Instead of finding aux-build files in `auxiliary`, we now search for an
`aux` directory relative to the test. So if your test is
`compile-fail/foo.rs`, we would look in `compile-fail/aux`.  Similarly,
we ignore the `aux` directory when searching for tets.

Author: nikomatsakis

src/test/codegen-units/item-collection/aux/cgu_export_trait_method.rs

@@ -0,0 +1,34 @@
+// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_type = "lib"]
+
+pub trait Trait : Sized {
+    fn without_self() -> u32;
+    fn without_self_default() -> u32 { 0 }
+
+    fn with_default_impl(self) -> Self { self }
+    fn with_default_impl_generic<T>(self, x: T) -> (Self, T) { (self, x) }
+
+    fn without_default_impl(x: u32) -> (Self, u32);
+    fn without_default_impl_generic<T>(x: T) -> (Self, T);
+}
+
+impl Trait for char {
+    fn without_self() -> u32 { 2 }
+    fn without_default_impl(x: u32) -> (Self, u32) { ('c', x) }
+    fn without_default_impl_generic<T>(x: T) -> (Self, T) { ('c', x) }
+}
+
+impl Trait for u32 {
+    fn without_self() -> u32 { 1 }
+    fn without_default_impl(x: u32) -> (Self, u32) { (0, x) }
+    fn without_default_impl_generic<T>(x: T) -> (Self, T) { (0, x) }
+}

src/test/codegen-units/item-collection/aux/cgu_extern_closures.rs

@@ -0,0 +1,33 @@
+// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_type = "lib"]
+
+#[inline]
+pub fn inlined_fn(x: i32, y: i32) -> i32 {
+
+    let closure = |a, b| { a + b };
+
+    closure(x, y)
+}
+
+pub fn inlined_fn_generic<T>(x: i32, y: i32, z: T) -> (i32, T) {
+
+    let closure = |a, b| { a + b };
+
+    (closure(x, y), z)
+}
+
+pub fn non_inlined_fn(x: i32, y: i32) -> i32 {
+
+    let closure = |a, b| { a + b };
+
+    closure(x, y)
+}

src/test/codegen-units/item-collection/aux/cgu_generic_function.rs

@@ -0,0 +1,37 @@
+// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_type = "lib"]
+
+struct Struct(u32);
+
+#[inline(never)]
+pub fn foo<T>(x: T) -> (T, u32, i8) {
+    let (x, Struct(y)) = bar(x);
+    (x, y, 2)
+}
+
+#[inline(never)]
+fn bar<T>(x: T) -> (T, Struct) {
+    let _ = not_exported_and_not_generic(0);
+    (x, Struct(1))
+}
+
+// These should not contribute to the codegen items of other crates.
+#[inline(never)]
+pub fn exported_but_not_generic(x: i32) -> i64 {
+    x as i64
+}
+
+#[inline(never)]
+fn not_exported_and_not_generic(x: u32) -> u64 {
+    x as u64
+}
+

src/test/codegen-units/partitioning/aux/cgu_explicit_inlining.rs

@@ -0,0 +1,20 @@
+// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_type = "lib"]
+
+#[inline]
+pub fn inlined() {}
+
+#[inline(always)]
+pub fn always_inlined() {}
+
+#[inline(never)]
+pub fn never_inlined() {}

src/test/codegen-units/partitioning/aux/cgu_extern_drop_glue.rs

@@ -0,0 +1,17 @@
+// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_type = "lib"]
+
+pub struct Struct(pub u32);
+
+impl Drop for Struct {
+    fn drop(&mut self) {}
+}

src/test/codegen-units/partitioning/aux/cgu_generic_function.rs

@@ -0,0 +1,37 @@
+// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_type = "lib"]
+
+struct Struct(u32);
+
+#[inline(never)]
+pub fn foo<T>(x: T) -> (T, u32, i8) {
+    let (x, Struct(y)) = bar(x);
+    (x, y, 2)
+}
+
+#[inline(never)]
+fn bar<T>(x: T) -> (T, Struct) {
+    let _ = not_exported_and_not_generic(0);
+    (x, Struct(1))
+}
+
+// These should not contribute to the codegen items of other crates.
+#[inline(never)]
+pub fn exported_but_not_generic(x: i32) -> i64 {
+    x as i64
+}
+
+#[inline(never)]
+fn not_exported_and_not_generic(x: u32) -> u64 {
+    x as u64
+}
+

src/test/compile-fail-fulldeps/aux/attr_plugin_test.rs

@@ -0,0 +1,31 @@
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// force-host
+
+#![feature(plugin_registrar)]
+#![feature(rustc_private)]
+
+extern crate syntax;
+
+extern crate rustc;
+extern crate rustc_plugin;
+
+use syntax::feature_gate::AttributeType;
+use rustc_plugin::Registry;
+
+
+
+#[plugin_registrar]
+pub fn plugin_registrar(reg: &mut Registry) {
+    reg.register_attribute("foo".to_owned(), AttributeType::Normal);
+    reg.register_attribute("bar".to_owned(), AttributeType::CrateLevel);
+    reg.register_attribute("baz".to_owned(), AttributeType::Whitelisted);
+}

src/test/compile-fail-fulldeps/aux/lint_for_crate.rs

@@ -0,0 +1,47 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// force-host
+
+#![feature(plugin_registrar, rustc_private)]
+#![feature(box_syntax)]
+
+#[macro_use] extern crate rustc;
+extern crate rustc_plugin;
+extern crate syntax;
+
+use rustc::lint::{LateContext, LintContext, LintPass, LateLintPass, LateLintPassObject, LintArray};
+use rustc_plugin::Registry;
+use rustc::hir;
+use syntax::attr;
+
+declare_lint!(CRATE_NOT_OKAY, Warn, "crate not marked with #![crate_okay]");
+
+struct Pass;
+
+impl LintPass for Pass {
+    fn get_lints(&self) -> LintArray {
+        lint_array!(CRATE_NOT_OKAY)
+    }
+}
+
+impl LateLintPass for Pass {
+    fn check_crate(&mut self, cx: &LateContext, krate: &hir::Crate) {
+        if !attr::contains_name(&krate.attrs, "crate_okay") {
+            cx.span_lint(CRATE_NOT_OKAY, krate.span,
+                         "crate is not marked with #![crate_okay]");
+        }
+    }
+}
+
+#[plugin_registrar]
+pub fn plugin_registrar(reg: &mut Registry) {
+    reg.register_late_lint_pass(box Pass as LateLintPassObject);
+}

src/test/compile-fail-fulldeps/aux/lint_group_plugin_test.rs

@@ -0,0 +1,51 @@
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// force-host
+
+#![feature(plugin_registrar)]
+#![feature(box_syntax, rustc_private)]
+
+// Load rustc as a plugin to get macros
+#[macro_use]
+extern crate rustc;
+extern crate rustc_plugin;
+
+use rustc::hir;
+use rustc::lint::{LateContext, LintContext, LintPass, LateLintPass, LateLintPassObject, LintArray};
+use rustc_plugin::Registry;
+
+declare_lint!(TEST_LINT, Warn, "Warn about items named 'lintme'");
+
+declare_lint!(PLEASE_LINT, Warn, "Warn about items named 'pleaselintme'");
+
+struct Pass;
+
+impl LintPass for Pass {
+    fn get_lints(&self) -> LintArray {
+        lint_array!(TEST_LINT, PLEASE_LINT)
+    }
+}
+
+impl LateLintPass for Pass {
+    fn check_item(&mut self, cx: &LateContext, it: &hir::Item) {
+        match &*it.name.as_str() {
+            "lintme" => cx.span_lint(TEST_LINT, it.span, "item is named 'lintme'"),
+            "pleaselintme" => cx.span_lint(PLEASE_LINT, it.span, "item is named 'pleaselintme'"),
+            _ => {}
+        }
+    }
+}
+
+#[plugin_registrar]
+pub fn plugin_registrar(reg: &mut Registry) {
+    reg.register_late_lint_pass(box Pass as LateLintPassObject);
+    reg.register_lint_group("lint_me", vec![TEST_LINT, PLEASE_LINT]);
+}

src/test/compile-fail-fulldeps/aux/lint_plugin_test.rs

@@ -0,0 +1,48 @@
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// force-host
+
+#![feature(plugin_registrar)]
+#![feature(box_syntax, rustc_private)]
+
+extern crate syntax;
+
+// Load rustc as a plugin to get macros
+#[macro_use]
+extern crate rustc;
+extern crate rustc_plugin;
+
+use rustc::lint::{EarlyContext, LintContext, LintPass, EarlyLintPass,
+                  EarlyLintPassObject, LintArray};
+use rustc_plugin::Registry;
+use syntax::ast;
+declare_lint!(TEST_LINT, Warn, "Warn about items named 'lintme'");
+
+struct Pass;
+
+impl LintPass for Pass {
+    fn get_lints(&self) -> LintArray {
+        lint_array!(TEST_LINT)
+    }
+}
+
+impl EarlyLintPass for Pass {
+    fn check_item(&mut self, cx: &EarlyContext, it: &ast::Item) {
+        if it.ident.name.as_str() == "lintme" {
+            cx.span_lint(TEST_LINT, it.span, "item is named 'lintme'");
+        }
+    }
+}
+
+#[plugin_registrar]
+pub fn plugin_registrar(reg: &mut Registry) {
+    reg.register_early_lint_pass(box Pass as EarlyLintPassObject);
+}