redundant_field_names: Do not trigger on path with type params

Fixes #3476

Author: sinkuu

clippy_lints/src/redundant_field_names.rs

@@ -57,7 +57,10 @@ impl EarlyLintPass for RedundantFieldNames {
                     continue;
                 }
                 if let ExprKind::Path(None, path) = &field.expr.node {
-                    if path.segments.len() == 1 && path.segments[0].ident == field.ident {
+                    if path.segments.len() == 1
+                        && path.segments[0].ident == field.ident
+                        && path.segments[0].args.is_none()
+                    {
                         span_lint_and_sugg(
                             cx,
                             REDUNDANT_FIELD_NAMES,

tests/ui/redundant_field_names.rs

@@ -68,3 +68,14 @@ fn main() {
     let _ = RangeInclusive::new(start, end);
     let _ = RangeToInclusive { end: end };
 }
+
+fn issue_3476() {
+    fn foo<T>() {
+    }
+
+    struct S {
+        foo: fn(),
+    }
+
+    S { foo: foo::<i32> };
+}