Adjust debug info version tests

Author: cjacek

clang/test/CodeGen/debug-info-version-coff.c

@@ -0,0 +1,8 @@
+// REQUIRES: x86-registered-target
+// RUN: %clang --target=x86_64-windows -g -S -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang --target=x86_64-windows -S -emit-llvm -o - %s | FileCheck %s
+int main (void) {
+  return 0;
+}
+
+// CHECK:  i32 2, !"Debug Info Version", i32 3}

clang/test/CodeGen/debug-info-version.c

@@ -1,3 +1,4 @@
+// REQUIRES: !system-windows
 // RUN: %clang -g -S -emit-llvm -o - %s | FileCheck %s
 // RUN: %clang -S -emit-llvm -o - %s | FileCheck %s --check-prefix=NO_DEBUG
 int main (void) {