[System] Don't use System.Reflection.Emit if we're in a FullAOT runtime.

diff --git a/mcs/class/System/System.Text.RegularExpressions/Regex.cs b/mcs/class/System/System.Text.RegularExpressions/Regex.cs
index 4748b403f54aa0e4dd2edb841c92237acd432e6c..f8c7de813486431073fe9ce74c34ba01ff70f178 100644 (file)
--- a/mcs/class/System/System.Text.RegularExpressions/Regex.cs
+++ b/mcs/class/System/System.Text.RegularExpressions/Regex.cs
@@ -31,7 +31,9 @@ using System;
 using System.Text;
 using System.Collections;
 using System.Reflection;
+#if !FULL_AOT_RUNTIME
 using System.Reflection.Emit;
+#endif
 using System.Runtime.Serialization;
 
 using RegularExpression = System.Text.RegularExpressions.Syntax.RegularExpression;