[yaml2obj] Add "-o" command line option to specify an output file name.

llvm-svn: 208900
diff --git a/llvm/test/Object/yaml2obj-elf-section-basic.yaml b/llvm/test/Object/yaml2obj-elf-section-basic.yaml
index 7264b7a..7316b7f 100644
--- a/llvm/test/Object/yaml2obj-elf-section-basic.yaml
+++ b/llvm/test/Object/yaml2obj-elf-section-basic.yaml
@@ -1,4 +1,7 @@
 # RUN: yaml2obj -format=elf %s | llvm-readobj -sections -section-data - | FileCheck %s
+# RUN: yaml2obj -format=elf -o %t %s
+# RUN: llvm-readobj -sections -section-data %t | FileCheck %s
+
 !ELF
 FileHeader:
   Class: ELFCLASS64
diff --git a/llvm/test/Object/yaml2obj-readobj.test b/llvm/test/Object/yaml2obj-readobj.test
index 3031f5e..3bd0c6b 100644
--- a/llvm/test/Object/yaml2obj-readobj.test
+++ b/llvm/test/Object/yaml2obj-readobj.test
@@ -1,4 +1,7 @@
 RUN: yaml2obj %p/Inputs/COFF/i386.yaml | llvm-readobj -file-headers -relocations -expand-relocs - | FileCheck %s --check-prefix COFF-I386
+RUN: yaml2obj -o %t %p/Inputs/COFF/i386.yaml
+RUN: llvm-readobj -file-headers -relocations -expand-relocs %t \
+RUN:   | FileCheck %s --check-prefix COFF-I386
 
 // COFF-I386:  Characteristics [ (0x200)
 // COFF-I386-NEXT:    IMAGE_FILE_DEBUG_STRIPPED (0x200)