#648: fix invalid code generation when interface method parameter's n…

…ame is the same as interface name

pkg/generator.go

@@ -193,11 +193,10 @@ func (g *Generator) mockName() string {
 }
 
 // getTypeConstraintString returns type constraint string for a given interface.
-//  For instance, a method using this constraint:
 //
-//    func Foo[T Stringer](s []T) (ret []string) {
-//
-//    }
+//	For instance, a method using this constraint:
+//	  func Foo[T Stringer](s []T) (ret []string) {
+//	  }
 //
 // The constraint returned will be "[T Stringer]"
 //
@@ -495,7 +494,10 @@ func (g *Generator) genList(ctx context.Context, list *types.Tuple, variadic boo
 			}
 		}
 
-		pname := v.Name()
+		pname := v.Name()x
+		if ts == pname {
+			pname = fmt.Sprintf("%s%d", pname, i)
+		}
 
 		if g.nameCollides(pname) || pname == "" {
 			pname = fmt.Sprintf("_a%d", i)