emcscripten: ignore another thread-using test

RalfJung · RalfJung · commit 028f53e38e58 · 2019-10-11T14:58:05.000+02:00
diff --git a/src/test/ui/extern/issue-64655-allow-unwind-when-calling-panic-directly.rs b/src/test/ui/extern/issue-64655-allow-unwind-when-calling-panic-directly.rs
@@ -1,5 +1,6 @@
 // run-pass
 // ignore-wasm32-bare compiled with panic=abort by default
+// ignore-emscripten no threads support
 
 // rust-lang/rust#64655: with panic=unwind, a panic from a subroutine
 // should still run destructors as it unwinds the stack. However,
