==== tests/cases/compiler/collisionSuperAndParameter.ts (9 errors) ====
    class Foo {
        a() {
            var lamda = (_super: number) => { // No Error 
                return x => this;   // New scope.  So should inject new _this capture
            }
        }
        b(_super: number) { // No Error 
            var lambda = () => {
                return x => this;   // New scope.  So should inject new _this capture
            }
        }
        set c(_super: number) { // No error
            ~
!!! Accessors are only available when targeting ECMAScript 5 and higher.
        }
    }
    class Foo2 extends Foo {
        x() {
            var lamda = (_super: number) => { // Error 
                         ~~~~~~~~~~~~~~
!!! Duplicate identifier '_super'. Compiler uses '_super' to capture base class reference.
                return x => this;   // New scope.  So should inject new _this capture
            }
        }
        y(_super: number) { // Error 
          ~~~~~~~~~~~~~~
!!! Duplicate identifier '_super'. Compiler uses '_super' to capture base class reference.
            var lambda = () => {
                return x => this;   // New scope.  So should inject new _this capture
            }
        }
        set z(_super: number) { // Error
            ~
!!! Accessors are only available when targeting ECMAScript 5 and higher.
              ~~~~~~~~~~~~~~
!!! Duplicate identifier '_super'. Compiler uses '_super' to capture base class reference.
        }
        public prop3: {
            doStuff: (_super: number) => void; // no error - no code gen
        }
        public prop4 = {
            doStuff: (_super: number) => { // should be error
                      ~~~~~~~~~~~~~~
!!! Duplicate identifier '_super'. Compiler uses '_super' to capture base class reference.
            }
        }
        constructor(_super: number) { // should be error
                    ~~~~~~~~~~~~~~
!!! Duplicate identifier '_super'. Compiler uses '_super' to capture base class reference.
            super();
        }
    }
    declare class Foo3 extends Foo {
        x();
        y(_super: number); // No error - no code gen
        constructor(_super: number); // No error - no code gen
        public prop2: {
            doStuff: (_super: number) => void; // no error - no code gen
        };
        public _super: number; // No error
    }
    
    class Foo4 extends Foo {
        constructor(_super: number); // no code gen - no error
        constructor(_super: string);// no code gen - no error
        constructor(_super: any) { // should be error
                    ~~~~~~~~~~~
!!! Duplicate identifier '_super'. Compiler uses '_super' to capture base class reference.
            super();
        }
        y(_super: number); // no code gen - no error
        y(_super: string); // no code gen - no error
        y(_super: any) { // Error 
          ~~~~~~~~~~~
!!! Duplicate identifier '_super'. Compiler uses '_super' to capture base class reference.
            var lambda = () => {
                return x => this;   // New scope.  So should inject new _this capture
            }
        }
    }