Verify types for Mvc4 sample during build

Author: Dustin Masters

build.proj

@@ -56,6 +56,10 @@ of patent rights can be found in the PATENTS file in the same directory.
 			WorkingDirectory="src/React.Core/Resources/babel-legacy"
 			Command="npm install"
 		/>
+		<Exec
+			WorkingDirectory="src/React.Sample.Mvc4"
+			Command="npm install"
+		/>
 		<Exec
 			WorkingDirectory="src/React.Sample.Webpack.CoreMvc"
 			Command="npm install"
@@ -100,6 +104,7 @@ of patent rights can be found in the PATENTS file in the same directory.
 		<Exec WorkingDirectory="src/React.Core/Resources/babel-legacy" Command="node_modules/.bin/webpack" />
 		<MSBuild Projects="$(SolutionFile)" Targets="Rebuild" Properties="Configuration=Release;Platform=Any CPU;NoWarn=1607,7035,1701;Version=$(VersionString)" />
 		<Exec WorkingDirectory="src/React.Sample.Webpack.CoreMvc" Command="node_modules/.bin/webpack" />
+		<Exec WorkingDirectory="src/React.Sample.Mvc4" Command="node_modules/.bin/tsc" />
 	</Target>
 
 	<Target Name="Test" DependsOnTargets="Build">

src/React.Sample.Mvc4/package-lock.json

@@ -3,6 +3,9 @@
   "version": "1.0.0",
   "main": "index.js",
   "license": "MIT",
+  "scripts": {
+    "lint:ts": "tsc"
+  },
   "devDependencies": {
     "@types/react": "16.8.19",
     "@types/react-dom": "16.8.4",