auto merge of #7128 : yichoi/rust/fix_sometc, r=brson

- Fix stat struct for Android (found by SEGV at run-pass/stat.rs)
- Adjust some test cases to rpass for Android 
- Modify some script to rpass for Android

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

@@ -42,12 +42,18 @@ fn test_destroy_actually_kills(force: bool) {
     #[cfg(windows)]
     static BLOCK_COMMAND: &'static str = "cmd";
 
-    #[cfg(unix)]
+    #[cfg(unix,not(target_os="android"))]
     fn process_exists(pid: libc::pid_t) -> bool {
         let run::ProcessOutput {output, _} = run::process_output("ps", [~"-p", pid.to_str()]);
         str::from_bytes(output).contains(pid.to_str())
     }
 
+    #[cfg(unix,target_os="android")]
+    fn process_exists(pid: libc::pid_t) -> bool {
+        let run::ProcessOutput {output, _} = run::process_output("/system/bin/ps", [pid.to_str()]);
+        str::from_bytes(output).contains(~"root")
+    }
+
     #[cfg(windows)]
     fn process_exists(pid: libc::pid_t) -> bool {
 

src/test/run-pass/intrinsic-alignment.rs

@@ -60,7 +60,7 @@ mod m {
     pub fn main() {
         unsafe {
             assert_eq!(::rusti::pref_align_of::<u64>(), 8u);
-            assert_eq!(::rusti::min_align_of::<u64>(), 4u);
+            assert_eq!(::rusti::min_align_of::<u64>(), 8u);
         }
     }
 }

src/test/run-pass/rec-align-u64.rs

@@ -63,8 +63,8 @@ mod m {
 mod m {
     #[cfg(target_arch = "arm")]
     pub mod m {
-        pub fn align() -> uint { 4u }
-        pub fn size() -> uint { 12u }
+        pub fn align() -> uint { 8u }
+        pub fn size() -> uint { 16u }
     }
 }