MSVC builds: Use /opt:ref for release builds

glib-compile-resources have been updated to ensure that the symbols
generated are referred to, so that they will not be optimized out by the
linker in release builds.  We can change from /opt:noref to /opt:ref,
which should improve optimization a bit.

build/win32/vs10/gtk3-demo-application.vcxprojin

@@ -105,7 +105,7 @@
     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <SubSystem>Console</SubSystem>
-      <OptimizeReferences>false</OptimizeReferences>
+      <OptimizeReferences>true</OptimizeReferences>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <TargetMachine>MachineX86</TargetMachine>
     </Link>
@@ -149,7 +149,7 @@
     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <SubSystem>Console</SubSystem>
-      <OptimizeReferences>false</OptimizeReferences>
+      <OptimizeReferences>true</OptimizeReferences>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <TargetMachine>MachineX64</TargetMachine>
     </Link>

build/win32/vs10/gtk3-demo.vcxprojin

@@ -112,7 +112,7 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <SubSystem>Console</SubSystem>
       <FunctionLevelLinking>false</FunctionLevelLinking>
-      <OptimizeReferences>false</OptimizeReferences>
+      <OptimizeReferences>true</OptimizeReferences>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <RandomizedBaseAddress>false</RandomizedBaseAddress>
       <DataExecutionPrevention>
@@ -160,7 +160,7 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <SubSystem>Console</SubSystem>
       <FunctionLevelLinking>false</FunctionLevelLinking>
-      <OptimizeReferences>false</OptimizeReferences>
+      <OptimizeReferences>true</OptimizeReferences>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <RandomizedBaseAddress>false</RandomizedBaseAddress>
       <DataExecutionPrevention>

build/win32/vs10/gtk3-icon-browser.vcxprojin

@@ -107,7 +107,7 @@
     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <SubSystem>Console</SubSystem>
-      <OptimizeReferences>false</OptimizeReferences>
+      <OptimizeReferences>true</OptimizeReferences>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <TargetMachine>MachineX86</TargetMachine>
     </Link>
@@ -153,7 +153,7 @@
     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <SubSystem>Console</SubSystem>
-      <OptimizeReferences>false</OptimizeReferences>
+      <OptimizeReferences>true</OptimizeReferences>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <TargetMachine>MachineX64</TargetMachine>
     </Link>

build/win32/vs9/gtk3-demo-application.vcprojin

@@ -73,7 +73,7 @@
 				LinkIncremental="1"
 				GenerateDebugInformation="true"
 				SubSystem="1"
-				OptimizeReferences="1"
+				OptimizeReferences="2"
 				EnableCOMDATFolding="2"
 				TargetMachine="1"
 			/>
@@ -134,7 +134,7 @@
 				LinkIncremental="1"
 				GenerateDebugInformation="true"
 				SubSystem="1"
-				OptimizeReferences="1"
+				OptimizeReferences="2"
 				EnableCOMDATFolding="2"
 				TargetMachine="17"
 			/>

build/win32/vs9/gtk3-demo.vcprojin

@@ -111,7 +111,7 @@
 				LinkIncremental="1"
 				GenerateDebugInformation="true"
 				SubSystem="1"
-				OptimizeReferences="1"
+				OptimizeReferences="2"
 				EnableCOMDATFolding="2"
 				RandomizedBaseAddress="1"
 				DataExecutionPrevention="0"
@@ -144,7 +144,7 @@
 				LinkIncremental="1"
 				GenerateDebugInformation="true"
 				SubSystem="1"
-				OptimizeReferences="1"
+				OptimizeReferences="2"
 				EnableCOMDATFolding="2"
 				RandomizedBaseAddress="1"
 				DataExecutionPrevention="0"

build/win32/vs9/gtk3-icon-browser.vcprojin

@@ -77,7 +77,7 @@
 				LinkIncremental="1"
 				GenerateDebugInformation="true"
 				SubSystem="1"
-				OptimizeReferences="1"
+				OptimizeReferences="2"
 				EnableCOMDATFolding="2"
 				TargetMachine="1"
 			/>
@@ -142,7 +142,7 @@
 				LinkIncremental="1"
 				GenerateDebugInformation="true"
 				SubSystem="1"
-				OptimizeReferences="1"
+				OptimizeReferences="2"
 				EnableCOMDATFolding="2"
 				TargetMachine="17"
 			/>