[FIR] reference shortener should not touch fake sources

e.g. implicit types can't be shortened.
On the other hand, requesting textRange means building ast
which might be slow, especially for compiled code

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/components/KtFirReferenceShortener.kt

@@ -368,7 +368,7 @@ private class ElementsToShortenCollector(
     }
 
     private fun processTypeRef(resolvedTypeRef: FirResolvedTypeRef) {
-        val wholeTypeReference = resolvedTypeRef.psi as? KtTypeReference ?: return
+        val wholeTypeReference = resolvedTypeRef.realPsi as? KtTypeReference ?: return
         if (!wholeTypeReference.textRange.intersects(selection)) return
 
         val wholeClassifierId = resolvedTypeRef.type.lowerBoundIfFlexible().candidateClassId ?: return