Upgrade wasm32 image to Ubuntu 20.04

This switches the wasm32 image, which is used to test
wasm32-unknown-emscripten to Ubuntu 20.04. While at it, enable
most of the excluded tests, as they seem to work fine with some
minor fixes.

1 files changed, 1 insertions, 1 deletions

diff --git a/library/test/src/tests.rs b/library/test/src/tests.rs
index 99e12c973c4..e4adf55fb7b 100644
--- a/library/test/src/tests.rs
+++ b/library/test/src/tests.rs
@@ -27,7 +27,6 @@ use crate::{
     },
     time::{TestTimeOptions, TimeThreshold},
 };
-use std::any::TypeId;
 use std::sync::mpsc::channel;
 use std::time::Duration;
 
@@ -198,6 +197,7 @@ fn test_should_panic_bad_message() {
 #[cfg(not(target_os = "emscripten"))]
 fn test_should_panic_non_string_message_type() {
     use crate::tests::TrFailedMsg;
+    use std::any::TypeId;
     fn f() {
         panic!(1i32);
     }