Compatibility with IJ 2021.2

MatchOptions require the fileType property to be set so that a
search profile can be derived from the file type. This is required in IJ
 2021.2.
Unfortunately the Kotlin properties syntax cannot be used for file
types!
diff --git a/org.eclipse.scout.sdk.s2i/src/main/kotlin/org/eclipse/scout/sdk/s2i/Extensions.kt b/org.eclipse.scout.sdk.s2i/src/main/kotlin/org/eclipse/scout/sdk/s2i/Extensions.kt
index a4a0c06..3aa657d 100644
--- a/org.eclipse.scout.sdk.s2i/src/main/kotlin/org/eclipse/scout/sdk/s2i/Extensions.kt
+++ b/org.eclipse.scout.sdk.s2i/src/main/kotlin/org/eclipse/scout/sdk/s2i/Extensions.kt
@@ -278,12 +278,13 @@
  */
 fun Project.findAllTypesAnnotatedWith(annotation: String, scope: SearchScope, indicator: ProgressIndicator? = null): Sequence<PsiClass> {
     val options = MatchOptions()
+    @Suppress("UsePropertyAccessSyntax") // not supported by Kotlin 1.5
+    options.setFileType(JavaFileType.INSTANCE)
     options.dialect = JavaLanguage.INSTANCE
     options.isCaseSensitiveMatch = true
     options.isRecursiveSearch = true
     options.scope = scope
     options.searchPattern = "@$annotation( )\nclass \$Class\$ {}"
-    options.fileType = JavaFileType.INSTANCE
 
     val constraint = MatchVariableConstraint()
     constraint.name = "Class"