Replace some _MSC_VER with _WIN32.
This allows to use some code for mingw which was previously only
used for MSVC.

llvm-svn: 203651
diff --git a/lldb/source/Host/common/File.cpp b/lldb/source/Host/common/File.cpp
index 1051757..500b03c 100644
--- a/lldb/source/Host/common/File.cpp
+++ b/lldb/source/Host/common/File.cpp
@@ -887,7 +887,7 @@
     {
         m_is_interactive = eLazyBoolNo;
         m_is_real_terminal = eLazyBoolNo;
-#ifdef _MSC_VER
+#ifdef _WIN32
         if (_isatty(fd))
         {
             m_is_interactive = eLazyBoolYes;
diff --git a/lldb/source/Host/common/SocketAddress.cpp b/lldb/source/Host/common/SocketAddress.cpp
index 75f3cd1..971c469 100644
--- a/lldb/source/Host/common/SocketAddress.cpp
+++ b/lldb/source/Host/common/SocketAddress.cpp
@@ -11,7 +11,7 @@
 #include <stddef.h>
 
 // C Includes
-#if !defined(_MSC_VER)
+#if !defined(_WIN32)
 #include <arpa/inet.h>
 #endif
 #include <assert.h>
diff --git a/lldb/source/Host/windows/EditLineWin.cpp b/lldb/source/Host/windows/EditLineWin.cpp
index d3d029d..381bf80 100644
--- a/lldb/source/Host/windows/EditLineWin.cpp
+++ b/lldb/source/Host/windows/EditLineWin.cpp
@@ -8,7 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 // this file is only relevant for Visual C++
-#if defined( _MSC_VER )
+#if defined( _WIN32 )
 
 #include "lldb/Host/windows/windows.h"