Auto merge of #31570 - tomaka:ignore-emscripten, r=brson

Ignores 82 rpass tests that use threads.
I took care to only ignore tests that call `thread::spawn`. Some tests, for example `issue-16597`, also do fail because of lack of threads support, but for other reasons.

With this PR, we're down to 49 failures.

r? @brson

Author: bors

src/test/run-pass/atomic-print.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// ignore-emscripten no threads support
+
 use std::{env, fmt, process, sync, thread};
 
 struct SlowFmt(u32);

src/test/run-pass/box-of-array-of-drop-1.rs

@@ -11,6 +11,8 @@
 // Test that we cleanup a fixed size Box<[D; k]> properly when D has a
 // destructor.
 
+// ignore-emscripten no threads support
+
 #![feature(const_fn)]
 
 use std::thread;

src/test/run-pass/box-of-array-of-drop-2.rs

@@ -11,6 +11,8 @@
 // Test that we cleanup dynamic sized Box<[D]> properly when D has a
 // destructor.
 
+// ignore-emscripten no threads support
+
 #![feature(const_fn)]
 
 use std::thread;

src/test/run-pass/cci_capture_clause.rs

@@ -14,6 +14,7 @@
 // that use capture clauses.
 
 // pretty-expanded FIXME #23616
+// ignore-emscripten no threads support
 
 extern crate cci_capture_clause;
 

src/test/run-pass/child-outlives-parent.rs

@@ -11,6 +11,7 @@
 // Reported as issue #126, child leaks the string.
 
 // pretty-expanded FIXME #23616
+// ignore-emscripten no threads support
 
 #![feature(std_misc)]
 

src/test/run-pass/cleanup-rvalue-temp-during-incomplete-alloc.rs

@@ -24,6 +24,7 @@
 // It's unclear how likely such a bug is to recur, but it seems like a
 // scenario worth testing.
 
+// ignore-emscripten no threads support
 
 #![allow(unknown_features)]
 #![feature(box_syntax)]

src/test/run-pass/clone-with-exterior.rs

@@ -8,6 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// ignore-emscripten no threads support
 
 #![allow(unknown_features)]
 #![feature(box_syntax, std_misc)]

src/test/run-pass/comm.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// ignore-emscripten no threads support
+
 #![feature(std_misc)]
 
 use std::thread;

src/test/run-pass/core-run-destroy.rs

@@ -10,6 +10,7 @@
 
 // ignore-pretty
 // compile-flags:--test
+// ignore-emscripten
 
 // NB: These tests kill child processes. Valgrind sees these children as leaking
 // memory, which makes for some *confusing* logs. That's why these are here

src/test/run-pass/drop-flag-skip-sanity-check.rs

@@ -9,6 +9,7 @@
 // except according to those terms.
 
 // compile-flags: -Z force-dropflag-checks=off
+// ignore-emscripten no threads support
 
 // Quick-and-dirty test to ensure -Z force-dropflag-checks=off works as
 // expected. Note that the inlined drop-flag is slated for removal