vs2015: disable warning in generated code, fix another

src/compiler/preprocessor/Tokenizer.cpp

@@ -540,6 +540,10 @@ http://msdn.microsoft.com/en-us/library/2scxys89.aspx
 IF YOU MODIFY THIS FILE YOU ALSO NEED TO RUN generate_parser.sh.
 */
 
+#if defined(_MSC_VER)
+#pragma warning(disable: 4005)
+#endif
+
 #include "Tokenizer.h"
 
 #include "DiagnosticsBase.h"

src/compiler/preprocessor/Tokenizer.l

@@ -23,6 +23,10 @@ IF YOU MODIFY THIS FILE YOU ALSO NEED TO RUN generate_parser.sh.
 }
 
 %{
+#if defined(_MSC_VER)
+#pragma warning(disable: 4005)
+#endif
+
 #include "Tokenizer.h"
 
 #include "DiagnosticsBase.h"

src/libANGLE/renderer/d3d/d3d9/SwapChain9.cpp

@@ -286,7 +286,7 @@ EGLint SwapChain9::swapRect(EGLint x, EGLint y, EGLint width, EGLint height)
         device->SetStreamSourceFreq(streamIndex, 1);
     }
 
-    D3DVIEWPORT9 viewport = {0, 0, mWidth, mHeight, 0.0f, 1.0f};
+    D3DVIEWPORT9 viewport = {0, 0, static_cast<DWORD>(mWidth), static_cast<DWORD>(mHeight), 0.0f, 1.0f};
     device->SetViewport(&viewport);
 
     float x1 = x - 0.5f;