From dbc1f4996d8b9e695a9fc88d423f342476f00cb4 Mon Sep 17 00:00:00 2001
From: Ryan Cavanaugh <RyanCavanaugh@users.noreply.github.com>
Date: Thu, 26 Jun 2025 22:36:34 -0700
Subject: [PATCH] Port #61955

---
 internal/checker/checker.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/internal/checker/checker.go b/internal/checker/checker.go
index bdb84cb488..51f0027493 100644
--- a/internal/checker/checker.go
+++ b/internal/checker/checker.go
@@ -8535,6 +8535,13 @@ func (c *Checker) resolveCall(node *ast.Node, signatures []*Signature, candidate
 	if candidatesOutArray != nil {
 		*candidatesOutArray = s.candidates
 	}
+
+	if len(s.candidates) == 0 {
+		// In Strada we would error here, but no known repro doesn't have at least
+		// one other error in this codepath. Just return instead. See #54442
+		return c.unknownSignature
+	}
+
 	s.args = c.getEffectiveCallArguments(node)
 	// The excludeArgument array contains true for each context sensitive argument (an argument
 	// is context sensitive it is susceptible to a one-time permanent contextual typing).