Use start for the sepcomp-inlining test

Author: bkchr

src/test/run-make/sepcomp-inlining/Makefile

@@ -10,6 +10,6 @@ all:
 	$(RUSTC) foo.rs --emit=llvm-ir -C codegen-units=3 \
 		-Z inline-in-all-cgus
 	[ "$$(cat "$(TMPDIR)"/foo.*.ll | grep -c define\ i32\ .*inlined)" -eq "0" ]
-	[ "$$(cat "$(TMPDIR)"/foo.*.ll | grep -c define\ internal\ i32\ .*inlined)" -eq "1" ]
+	[ "$$(cat "$(TMPDIR)"/foo.*.ll | grep -c define\ internal\ i32\ .*inlined)" -eq "2" ]
 	[ "$$(cat "$(TMPDIR)"/foo.*.ll | grep -c define\ hidden\ i32\ .*normal)" -eq "1" ]
-	[ "$$(cat "$(TMPDIR)"/foo.*.ll | grep -c declare\ hidden\ i32\ .*normal)" -eq "1" ]
+	[ "$$(cat "$(TMPDIR)"/foo.*.ll | grep -c declare\ hidden\ i32\ .*normal)" -eq "2" ]

src/test/run-make/sepcomp-inlining/foo.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(start)]
+
 #[inline]
 fn inlined() -> u32 {
     1234
@@ -29,7 +31,10 @@ mod b {
     }
 }
 
-fn main() {
+#[start]
+fn start(_: isize, _: *const *const u8) -> isize {
     a::f();
     b::f();
+
+    0
 }