[FIR] Fix 1.(fun Int.() = 1)() call fir conversion

compiler/fir/raw-fir/light-tree2fir/src/org/jetbrains/kotlin/fir/lightTree/converter/ExpressionsConverter.kt

@@ -551,6 +551,7 @@ class ExpressionsConverter(
             }
         }
 
+        var result = firSelector
         (firSelector as? FirQualifiedAccess)?.let {
             if (isSafe) {
                 @OptIn(FirImplementationDetail::class)
@@ -561,13 +562,10 @@ class ExpressionsConverter(
                 )
             }
 
-            it.replaceExplicitReceiver(firReceiver)
-
-            @OptIn(FirImplementationDetail::class)
-            it.replaceSource(dotQualifiedExpression.toFirSourceElement())
+            result = convertFirSelector(it, dotQualifiedExpression.toFirSourceElement(), firReceiver!!) as? FirExpression
         }
 
-        return firSelector ?: buildErrorExpression(
+        return result ?: buildErrorExpression(
             null,
             ConeSimpleDiagnostic("Qualified expression without selector", DiagnosticKind.Syntax)
         )

compiler/fir/raw-fir/psi2fir/src/org/jetbrains/kotlin/fir/builder/RawFirBuilder.kt

@@ -2374,10 +2374,7 @@ open class RawFirBuilder(
                     )
                 }
 
-                firSelector.replaceExplicitReceiver(receiver)
-
-                @OptIn(FirImplementationDetail::class)
-                firSelector.replaceSource(expression.toFirSourceElement())
+                return convertFirSelector(firSelector, expression.toFirSourceElement(), receiver)
             }
             return firSelector
         }

compiler/fir/raw-fir/raw-fir.common/src/org/jetbrains/kotlin/fir/builder/BaseFirBuilder.kt

@@ -1266,6 +1266,31 @@ abstract class BaseFirBuilder<T>(val baseSession: FirSession, val context: Conte
         }
     }
 
+    protected fun convertFirSelector(
+        firSelector: FirQualifiedAccess,
+        source: KtSourceElement?,
+        receiver: FirExpression
+    ): FirQualifiedAccess {
+        return if (firSelector is FirImplicitInvokeCall) {
+            buildImplicitInvokeCall {
+                this.source = source
+                annotations.addAll(firSelector.annotations)
+                typeArguments.addAll(firSelector.typeArguments)
+                explicitReceiver = firSelector.explicitReceiver
+                argumentList = buildArgumentList {
+                    arguments.add(receiver)
+                    arguments.addAll(firSelector.arguments)
+                }
+                calleeReference = firSelector.calleeReference
+            }
+        } else {
+            firSelector.replaceExplicitReceiver(receiver)
+            @OptIn(FirImplementationDetail::class)
+            firSelector.replaceSource(source)
+            firSelector
+        }
+    }
+
     protected fun convertValueParameterName(
         safeName: Name,
         rawName: String?,