chore: import upstream snapshot with attribution

internal/resolver/rust_samecrate_test.go

@@ -0,0 +1,35 @@
+package resolver
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+// A bare `RegexMatcherBuilder::new()` call is ambiguous when two crates
+// define that type, but a same-crate call almost always means the same-crate
+// type. The scope pass breaks the tie by the caller's crate (the path up to
+// "/src/").
+func TestRustScope_SameCrateDisambiguation(t *testing.T) {
+	g := buildRustGraph(t, map[string]string{
+		"crates/regex/src/matcher.rs": `
+struct RegexMatcherBuilder {}
+impl RegexMatcherBuilder {
+    fn new() -> RegexMatcherBuilder { RegexMatcherBuilder {} }
+}
+fn make() {
+    let _b = RegexMatcherBuilder::new();
+}
+`,
+		"crates/pcre2/src/matcher.rs": `
+struct RegexMatcherBuilder {}
+impl RegexMatcherBuilder {
+    fn new() -> RegexMatcherBuilder { RegexMatcherBuilder {} }
+}
+`,
+	})
+	ResolveRustScopeCalls(g)
+	targets := callTargetsFromRust(g, "crates/regex/src/matcher.rs::make")
+	require.Contains(t, targets, "crates/regex/src/matcher.rs::RegexMatcherBuilder.new")
+	require.NotContains(t, targets, "crates/pcre2/src/matcher.rs::RegexMatcherBuilder.new")
+}