test va_list with bounds safety

Author: hnrklssn

test/Interop/C/bounds-safety/Inputs/bounds-attributed-function.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <ptrcheck.h>
+#include <stdarg.h>
 
 #ifndef __unsafe_late_const
 #define __unsafe_late_const
@@ -42,4 +43,6 @@ const int len1 = 7;
 int * __counted_by(len1) u(int * __counted_by(len1) p);
 
 int len2 __unsafe_late_const;
-int * __counted_by(len2) v(int * __counted_by(len2) p);
+int * __counted_by(len2) v(int * __counted_by(len2) p);
+
+void w(va_list p);

test/Interop/C/bounds-safety/import-bounds-attributed-function.swift

@@ -43,7 +43,8 @@ func call(_ mutIntPtr: UnsafeMutablePointer<CInt>,
           _ constCharPtr: UnsafePointer<CChar>,
           _ mutMutIntPtrPtr: UnsafeMutablePointer<UnsafeMutablePointer<CInt>?>!,
           _ mutMutCharPtrPtr: UnsafeMutablePointer<UnsafeMutablePointer<CChar>?>!,
-          _ int: CInt) {
+          _ int: CInt,
+          _ args: CVaListPointer) {
     let _ = a(mutIntPtr, int)
     let _ = b(mutCharPtr, int)
     let _ = c(mutCharPtr, int)
@@ -76,4 +77,6 @@ func call(_ mutIntPtr: UnsafeMutablePointer<CInt>,
     let _ = len2
     len2 = 37
     let _ = v(mutIntPtr)
+
+    let _ = w(args)
 }