No hidden visiblity on Mingw32/Cygwin

llvm-svn: 33202
diff --git a/llvm/lib/Target/X86/X86TargetAsmInfo.cpp b/llvm/lib/Target/X86/X86TargetAsmInfo.cpp
index 5d52d93..5f15645 100644
--- a/llvm/lib/Target/X86/X86TargetAsmInfo.cpp
+++ b/llvm/lib/Target/X86/X86TargetAsmInfo.cpp
@@ -112,6 +112,7 @@
     HasDotTypeDotSizeDirective = false;
     StaticCtorsSection = "\t.section .ctors,\"aw\"";
     StaticDtorsSection = "\t.section .dtors,\"aw\"";
+    HiddenDirective = NULL;
 
     // Set up DWARF directives
     HasLEB128 = true;  // Target asm supports leb128 directives (little-endian)