Revert "Revert "llvm-strings: support printing the filename""

Change the dynamic files to static in the hope that it will actually fix the
transient errors that Ive been unable to reproduce.

llvm-svn: 286891
diff --git a/llvm/test/tools/llvm-strings/stdin-filename.test b/llvm/test/tools/llvm-strings/stdin-filename.test
new file mode 100644
index 0000000..9c87e5c
--- /dev/null
+++ b/llvm/test/tools/llvm-strings/stdin-filename.test
@@ -0,0 +1,3 @@
+RUN: echo abcd | llvm-strings -f - | FileCheck %s
+RUN: echo abcd | llvm-strings --print-file-name - | FileCheck %s
+CHECK: {standard input}: abcd