Use SourceLink instead of EmbedAllSources

ICSharpCode.Decompiler/ICSharpCode.Decompiler.csproj

@@ -33,7 +33,6 @@
   <PropertyGroup Condition="'$(Configuration)' == 'Debug'">
     <DebugType>portable</DebugType>
     <DebugSymbols>true</DebugSymbols>
-    <EmbedAllSources>true</EmbedAllSources>
     <CheckForOverflowUnderflow>True</CheckForOverflowUnderflow>
     <DefineConstants>$(DefineConstants);STEP</DefineConstants>
   </PropertyGroup>
@@ -41,7 +40,6 @@
   <PropertyGroup Condition="'$(Configuration)' == 'Release'">
     <DebugType>portable</DebugType>
     <DebugSymbols>true</DebugSymbols>
-    <EmbedAllSources>true</EmbedAllSources>
   </PropertyGroup>
 
   <PropertyGroup>
@@ -54,6 +52,10 @@
     <PackageReference Include="System.Collections.Immutable" Version="1.5.0" />
     <PackageReference Include="System.Reflection.Metadata" Version="1.6.0" />
     <PackageReference Include="System.ValueTuple" Version="4.3.0" />
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0-beta2-19367-01">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
   </ItemGroup>
 
   <ItemGroup>