Skip wasm32

Author: jieyouxu

Diff for: tests/ui/debuginfo/backtrace-dylib-dep.rs

@@ -7,6 +7,7 @@
 //@ compile-flags: -g -Copt-level=0 -Cstrip=none
 //@ aux-crate: dylib_dep_helper=dylib-dep-helper.rs
 //@ aux-crate: auxiliary=dylib-dep-helper-aux.rs
+//@ ignore-wasm32 spawning processes is not supported
 //@ ignore-musl musl doesn't support dynamic libraries (at least when the original test was written).
 //@ run-pass