IDEA-123712 Groovy: @language annotation on method parameters with default values

reflected methods now have light parameters with original modifier lists

plugins/groovy/src/org/jetbrains/plugins/groovy/lang/psi/impl/synthetic/GrLightParameter.java

@@ -50,6 +50,10 @@ public class GrLightParameter extends LightVariableBuilder<GrLightParameter> imp
     myTypeElement = type == null ? null : new GrLightTypeElement(type, scope.getManager());
   }
 
+  public void setModifierList(GrModifierList modifierList) {
+    myModifierList = modifierList;
+  }
+
   @NotNull
   private static PsiType getTypeNotNull(PsiType type, PsiElement scope) {
     return type != null ? type : PsiType.getJavaLangObject(scope.getManager(), scope.getResolveScope());

plugins/groovy/src/org/jetbrains/plugins/groovy/lang/psi/impl/synthetic/GrReflectedMethodImpl.java

@@ -129,7 +129,7 @@ public class GrReflectedMethodImpl extends LightMethodBuilder implements GrRefle
         }
         optionalParams--;
       }
-      parameterList.addParameter(new GrLightParameter(parameter.getName(), parameter.getDeclaredType(), this));
+      parameterList.addParameter(createLightParameter(parameter));
     }
 
     LOG.assertTrue(optionalParams == 0);
@@ -137,6 +137,12 @@ public class GrReflectedMethodImpl extends LightMethodBuilder implements GrRefle
     mySkippedParameters = skipped.toArray(new GrParameter[skipped.size()]);
   }
 
+  private GrLightParameter createLightParameter(GrParameter parameter) {
+    GrLightParameter lightParameter = new GrLightParameter(parameter.getName(), parameter.getDeclaredType(), this);
+    lightParameter.setModifierList(parameter.getModifierList());
+    return lightParameter;
+  }
+
   @NotNull
   @Override
   public GrMethod getBaseMethod() {