Lucene.Net.Expressions.csproj: Added custom path for Antlr4OutputPath to try to fix parallel build issues.

Author: NightOwl888

src/Lucene.Net.Expressions/Lucene.Net.Expressions.csproj

@@ -72,6 +72,10 @@
     <Antlr4ToolPath Condition="'$(PkgAntlr4_CodeGenerator)' != '' And '$(Antlr4ToolPath)' == ''">$(PkgAntlr4_CodeGenerator)\tools\antlr4-csharp-$(Antlr4CodeGeneratorVersion)-complete.jar</Antlr4ToolPath>
   </PropertyGroup>
 
+  <PropertyGroup>
+    <Antlr4OutputPath>$(BaseIntermediateOutputPath)$(MSBuildProjectName)\$(Configuration)\$(TargetFramework)\Antlr4\</Antlr4OutputPath>
+  </PropertyGroup>
+
   <ItemGroup>
     <Antlr4 Include="JS\Javascript.g4">
       <Listener>true</Listener>