From 963ab7f27f3e77885fba12188cc3b54279b4f584 Mon Sep 17 00:00:00 2001
From: Mikhail Zarechenskiy <mikhail.zarechenskiy@jetbrains.com>
Date: Fri, 11 Aug 2017 12:42:17 +0300
Subject: [PATCH] [NI] Fix KNPE, exception occurred when element is synthetic

---
 .../calls/DiagnosticReporterByTrackingStrategy.kt      | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/DiagnosticReporterByTrackingStrategy.kt b/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/DiagnosticReporterByTrackingStrategy.kt
index 8fa1566a91a..5d93a4b9648 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/DiagnosticReporterByTrackingStrategy.kt
+++ b/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/DiagnosticReporterByTrackingStrategy.kt
@@ -95,8 +95,14 @@ class DiagnosticReporterByTrackingStrategy(
         when (diagnostic.javaClass) {
             SmartCastDiagnostic::class.java -> reportSmartCast(diagnostic as SmartCastDiagnostic)
             UnstableSmartCast::class.java -> reportUnstableSmartCast(diagnostic as UnstableSmartCast)
-            TooManyArguments::class.java ->
-                trace.report(TOO_MANY_ARGUMENTS.on(callArgument.psiExpression!!, (diagnostic as TooManyArguments).descriptor))
+            TooManyArguments::class.java -> {
+                val psiExpression = callArgument.psiExpression
+                if (psiExpression != null) {
+                    trace.report(TOO_MANY_ARGUMENTS.on(psiExpression, (diagnostic as TooManyArguments).descriptor))
+                }
+
+                trace.markAsReported()
+            }
             VarargArgumentOutsideParentheses::class.java ->
                 trace.report(VARARG_OUTSIDE_PARENTHESES.on(callArgument.psiExpression!!))
         }