X64: Set target machine for Visual Studio projects to x64.

Review URL: http://codereview.chromium.org/174137

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2742 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

tools/visual_studio/d8_x64.vcproj

@@ -50,6 +50,7 @@
 			<Tool
 				Name="VCLinkerTool"
 				AdditionalDependencies="winmm.lib Ws2_32.lib"
+				TargetMachine="17"
 			/>
 			<Tool
 				Name="VCALinkTool"
@@ -111,6 +112,7 @@
 			<Tool
 				Name="VCLinkerTool"
 				AdditionalDependencies="winmm.lib Ws2_32.lib"
+				TargetMachine="17"
 			/>
 			<Tool
 				Name="VCALinkTool"

tools/visual_studio/v8_cctest_x64.vcproj

@@ -50,6 +50,7 @@
 			<Tool
 				Name="VCLinkerTool"
 				AdditionalDependencies="winmm.lib Ws2_32.lib"
+				TargetMachine="17"
 			/>
 			<Tool
 				Name="VCALinkTool"
@@ -111,6 +112,7 @@
 			<Tool
 				Name="VCLinkerTool"
 				AdditionalDependencies="winmm.lib Ws2_32.lib"
+				TargetMachine="17"
 			/>
 			<Tool
 				Name="VCALinkTool"

tools/visual_studio/v8_shell_sample_x64.vcproj

@@ -50,6 +50,7 @@
 			<Tool
 				Name="VCLinkerTool"
 				AdditionalDependencies="winmm.lib Ws2_32.lib"
+				TargetMachine="17"
 			/>
 			<Tool
 				Name="VCALinkTool"
@@ -111,6 +112,7 @@
 			<Tool
 				Name="VCLinkerTool"
 				AdditionalDependencies="winmm.lib Ws2_32.lib"
+				TargetMachine="17"
 			/>
 			<Tool
 				Name="VCALinkTool"