temporarily disable tests on android and tagging issue number #10379

Author: yichoi

src/libstd/unstable/dynamic_lib.rs

@@ -90,6 +90,7 @@ mod test {
 
     #[test]
     #[ignore(cfg(windows))] // FIXME #8818
+    #[ignore(cfg(target_os="android"))] // FIXME(#10379)
     fn test_loading_cosine() {
         // The math library does not need to be loaded since it is already
         // statically linked in

src/test/run-pass/linkage-visibility.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// xfail-android: FIXME(#10379)
+
 // aux-build:linkage-visibility.rs
 // xfail-fast windows doesn't like aux-build