Upgrade to Esprima 3.0.0-beta-9 (#1317)

Jint.Tests.PublicInterface/RavenApiUsageTests.cs

@@ -1,6 +1,5 @@
 using Esprima.Ast;
 using Jint.Constraints;
-using Jint.Native;
 using Jint.Native.Array;
 using Jint.Native.Function;
 using Jint.Runtime.Descriptors;
@@ -66,7 +65,7 @@ public class RavenApiUsageTests
 
         var engine = new Engine();
         var array = new ArrayInstance(engine, descriptors);
-        Assert.Equal(1l, array.Length);
+        Assert.Equal(1L, array.Length);
         Assert.Equal(42, array[0]);
     }
 }

Jint/Jint.csproj

@@ -12,7 +12,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Esprima" Version="3.0.0-beta-8" />
+    <PackageReference Include="Esprima" Version="3.0.0-beta-9" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="all" />
     <PackageReference Include="Nullable" Version="1.3.1" PrivateAssets="all" />
   </ItemGroup>