Update Mono WebAssembly for Blazor (dotnet/blazor#1807)

Author: SteveSandersonMS

build/sources.props

@@ -27,6 +27,11 @@
       $(RestoreSources);
       https://dotnet.myget.org/F/aspnetcore-dev/api/v3/index.json;
     </RestoreSources>
+    <!-- TODO remove this once we move Microsoft.AspNetCore.Blazor.Mono to a non-myget feed -->
+    <RestoreSources>
+      $(RestoreSources);
+      https://dotnet.myget.org/F/blazor-dev/api/v3/index.json;
+    </RestoreSources>
 
     <!-- In an orchestrated build, this may be overriden to other Azure feeds. -->
     <DotNetAssetRootUrl Condition="'$(DotNetAssetRootUrl)'==''">https://dotnetcli.blob.core.windows.net/dotnet/</DotNetAssetRootUrl>

eng/Versions.props

@@ -165,7 +165,7 @@
     <MicrosoftWebXdtPackageVersion>1.4.0</MicrosoftWebXdtPackageVersion>
     <SystemIdentityModelTokensJwtPackageVersion>5.3.0</SystemIdentityModelTokensJwtPackageVersion>
     <!-- Dependencies for Blazor. -->
-    <MicrosoftAspNetCoreBlazorMonoPackageVersion>0.10.0-preview-20190325.1</MicrosoftAspNetCoreBlazorMonoPackageVersion>
+    <MicrosoftAspNetCoreBlazorMonoPackageVersion>0.10.0-preview-20190523.1</MicrosoftAspNetCoreBlazorMonoPackageVersion>
     <!-- Packages from 2.1/2.2 branches used for site extension build -->
     <MicrosoftAspNetCoreAzureAppServicesSiteExtension21PackageVersion>2.1.1</MicrosoftAspNetCoreAzureAppServicesSiteExtension21PackageVersion>
     <MicrosoftAspNetCoreAzureAppServicesSiteExtension22PackageVersion>2.2.0</MicrosoftAspNetCoreAzureAppServicesSiteExtension22PackageVersion>

src/Components/Blazor/Build/src/targets/Blazor.MonoRuntime.props

@@ -6,7 +6,7 @@
 
   <PropertyGroup Label="Blazor build outputs">
     <MonoLinkerI18NAssemblies>none</MonoLinkerI18NAssemblies> <!-- See Mono linker docs - allows comma-separated values from: none,all,cjk,mideast,other,rare,west -->
-    <AdditionalMonoLinkerOptions>--verbose --strip-security true --exclude-feature com --exclude-feature sre -v false -c link -u link -b true</AdditionalMonoLinkerOptions>
+    <AdditionalMonoLinkerOptions>--disable-opt unreachablebodies --verbose --strip-security true --exclude-feature com --exclude-feature sre -v false -c link -u link -b true</AdditionalMonoLinkerOptions>
     <BaseBlazorDistPath>dist/</BaseBlazorDistPath>
     <BaseBlazorPackageContentOutputPath>$(BaseBlazorDistPath)_content/</BaseBlazorPackageContentOutputPath>
     <BaseBlazorRuntimeOutputPath>$(BaseBlazorDistPath)_framework/</BaseBlazorRuntimeOutputPath>