[platform api] remove ApiStatus.Internal for IconMapperBean class (IJPL-171878)

The corresponding extension is used in plugins.


(cherry picked from commit 2dae602feafc0ed6b639e1139ecf9a0a76957f30)

IJ-CR-149690

GitOrigin-RevId: 5df51d8a7f7f17bb1d2a365e508fef860ff0ef32

platform/platform-impl/api-dump-unreviewed.txt

@@ -4687,6 +4687,8 @@ f:com.intellij.ide.trustedProjects.TrustedProjectsLocator$Companion
 com.intellij.ide.trustedProjects.TrustedProjectsLocator$LocatedProject
 - a:getProject():com.intellij.openapi.project.Project
 - a:getProjectRoots():java.util.List
+f:com.intellij.ide.ui.IconMapperBean
+- mappingFile:java.lang.String
 com.intellij.ide.ui.OptionsSearchTopHitProvider
 - a:getId():java.lang.String
 com.intellij.ide.ui.OptionsSearchTopHitProvider$ApplicationLevelProvider

platform/platform-impl/src/com/intellij/ide/ui/IconMapperBean.java

@@ -10,11 +10,14 @@ import org.jetbrains.annotations.NonNls;
 /**
  * @author Konstantin Bulenkov
  */
-@ApiStatus.Internal
 public final class IconMapperBean {
   @ApiStatus.Internal
   public static final ExtensionPointName<IconMapperBean> EP_NAME = new ExtensionPointName<>("com.intellij.iconMapper");
 
+  @ApiStatus.Internal
+  public IconMapperBean() {
+  }
+
   @Attribute("mappingFile")
   @RequiredElement
   public @NonNls String mappingFile;