FIR: Support type aliases to function types in resolution

compiler/fir/tree/src/org/jetbrains/kotlin/fir/FirRenderer.kt

@@ -769,7 +769,9 @@ class FirRenderer(builder: StringBuilder) : FirVisitorVoid() {
         annotations.renderAnnotations()
         print("R|")
         val coneType = resolvedTypeRef.type
-        print(coneType.renderFunctionType(kind, resolvedTypeRef.isExtensionFunctionType()))
+        print(coneType.renderFunctionType(kind, resolvedTypeRef.annotations.any {
+            it.isExtensionFunctionAnnotationCall
+        }))
         print("|")
     }
 

compiler/fir/tree/src/org/jetbrains/kotlin/fir/types/FirTypeUtils.kt

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.fir.types
 
+import org.jetbrains.kotlin.fir.FirSession
 import org.jetbrains.kotlin.fir.expressions.FirAnnotationCall
 import org.jetbrains.kotlin.fir.expressions.FirConstKind
 import org.jetbrains.kotlin.fir.symbols.StandardClassIds
@@ -38,12 +39,6 @@ val FirFunctionTypeRef.parametersCount: Int
 
 const val EXTENSION_FUNCTION_ANNOTATION = "kotlin/ExtensionFunctionType"
 
-fun FirTypeRef.isExtensionFunctionType(): Boolean {
-    return annotations.any {
-        it.isExtensionFunctionAnnotationCall
-    }
-}
-
 val FirAnnotationCall.isExtensionFunctionAnnotationCall: Boolean
     get() = (this as? FirAnnotationCall)?.let {
         (it.annotationTypeRef as? FirResolvedTypeRef)?.let {
@@ -64,4 +59,4 @@ fun ConeClassLikeType.toConstKind(): FirConstKind<*>? = when (lookupTag.classId)
     StandardClassIds.Int -> FirConstKind.Int
     StandardClassIds.Long -> FirConstKind.Long
     else -> null
-}
+}