Tighten up host package sizes

Only pack ILC (without its 60MB PDB) into host packages.
Only pack the target libraries into target packages.

Reduces the size of the host package from ~64MB to ~13MB.

Author: SingleAccretion

src/installer/pkg/projects/Microsoft.DotNet.ILCompiler.LLVM/Microsoft.DotNet.ILCompiler.LLVM.pkgproj

@@ -2,56 +2,48 @@
 
   <PropertyGroup>
     <GeneratePackage>true</GeneratePackage>
-    <IncludeSymbolsInPackage>true</IncludeSymbolsInPackage>
     <PackageDescription>Provides a native AOT compiler and runtime for .NET</PackageDescription>
-  </PropertyGroup>
 
-  <PropertyGroup>
-    <!-- For now, send symbols package into a dummy directory to avoid conflicts with dotnet/runtime and
-         to avoid issues with objwriter not having the rigth ELF version resource -->
-    <SymbolPackageOutputPath>$([MSBuild]::NormalizeDirectory('$(ArtifactsPackagesDir)', 'Ignored'))</SymbolPackageOutputPath>
+    <BuildingIlcHostPackage Condition="'$(TargetsWasm)' != 'true'">true</BuildingIlcHostPackage>
   </PropertyGroup>
 
   <Target Name="GetIlcCompilerFiles"
           DependsOnTargets="ResolveLibrariesFromLocalBuild"
           BeforeTargets="GetPackageFiles">
 
-    <ItemGroup Condition="'$(PackageTargetRuntime)' != ''">
-      <File Include="@(LibrariesRuntimeFiles)">
-        <TargetPath>framework/%(LibrariesRuntimeFiles.NativeSubDirectory)</TargetPath>
-      </File>
-      <File Include="$(CoreCLRILCompilerDir)*">
-        <TargetPath>tools</TargetPath>
-      </File>
-      <File Include="$(CoreCLRAotSdkDir)*">
-        <TargetPath>sdk</TargetPath>
-      </File>
+    <ItemGroup Condition="'$(PackageTargetRuntime)' == ''">
+      <File Include="$(CoreCLRBuildIntegrationDir)*" TargetPath="build" />
+      <File Include="$(CoreCLRILCompilerDir)netstandard\*" TargetPath="tools/netstandard" />
+
+      <!-- TODO-LLVM-Upstream: https://github.com/dotnet/runtimelab/issues/2576 -->
+      <File Include="$(ArtifactsBinDir)Microsoft.Interop.SourceGeneration\$(Configuration)\netstandard2.0\*" TargetPath="analyzers/dotnet/cs" />
+      <File Include="$(ArtifactsBinDir)JSImportGenerator\$(Configuration)\netstandard2.0\*" TargetPath="analyzers/dotnet/cs" />
+    </ItemGroup>
+
+    <ItemGroup Condition="'$(PackageTargetRuntime)' != '' and '$(BuildingIlcHostPackage)' == 'true'">
+      <File Include="$(CoreCLRILCompilerDir)*" TargetPath="tools" />
+    </ItemGroup>
+
+    <ItemGroup Condition="'$(PackageTargetRuntime)' != '' and '$(BuildingIlcHostPackage)' != 'true'">
+      <File Include="@(LibrariesRuntimeFiles)" TargetPath="framework/%(LibrariesRuntimeFiles.NativeSubDirectory)" />
+      <File Include="$(CoreCLRAotSdkDir)*" TargetPath="sdk" />
+      <File Include="$(MibcOptimizationDataDir)/$(TargetOS)/$(TargetArchitecture)/**/*.mibc" TargetPath="mibc" />
+
       <DotnetJsCoreCLRAotSdkExtension Include="ts;js;map;json" />
       <File Include="$(CoreCLRAotSdkDir)dotnetjs/*.%(DotnetJsCoreCLRAotSdkExtension.Identity)" TargetPath="sdk/dotnetjs" />
       <File Include="$(CoreCLRAotSdkDir)dotnetjs/src/*.%(DotnetJsCoreCLRAotSdkExtension.Identity)" TargetPath="sdk/dotnetjs/src" />
       <File Include="$(CoreCLRAotSdkDir)dotnetjs/src/es6/*.%(DotnetJsCoreCLRAotSdkExtension.Identity)" TargetPath="sdk/dotnetjs/src/es6" />
-      <File Include="$(MibcOptimizationDataDir)/$(TargetOS)/$(TargetArchitecture)/**/*.mibc">
-        <TargetPath>mibc</TargetPath>
-      </File>
     </ItemGroup>
 
+    <!-- exclude native symbols from ilc package (they are included in symbols package) -->
     <ItemGroup>
-      <File Include="$(CoreCLRBuildIntegrationDir)*">
-        <TargetPath>build</TargetPath>
-      </File>
-      <File Include="$(CoreCLRILCompilerDir)netstandard\*">
-        <TargetPath>tools/netstandard</TargetPath>
-      </File>
-    </ItemGroup>
+       <!-- on windows, remove the pdbs only from tools directory (both managed and native) -->
+      <LibPackageExcludes Include="tools\%2A%2A\%2A.pdb"/>
 
-    <!-- TODO-LLVM-Upstream: https://github.com/dotnet/runtimelab/issues/2576 -->
-    <ItemGroup Condition="'$(PackageTargetRuntime)' == ''">
-      <File Include="$(ArtifactsBinDir)Microsoft.Interop.SourceGeneration\$(Configuration)\netstandard2.0\*">
-        <TargetPath>analyzers/dotnet/cs</TargetPath>
-      </File>
-      <File Include="$(ArtifactsBinDir)JSImportGenerator\$(Configuration)\netstandard2.0\*">
-        <TargetPath>analyzers/dotnet/cs</TargetPath>
-      </File>
+      <LibPackageExcludes Include="%2A%2A\%2A.dbg"/>
+      <LibPackageExcludes Include="%2A%2A\%2A.debug"/>
+      <LibPackageExcludes Include="%2A%2A\%2A.dSYM"/>
+      <LibPackageExcludes Include="%2A%2A\%2A.dwarf"/>
     </ItemGroup>
   </Target>