no new variables on left side of :=

[o1egl]

Generates incorrect code if function has params param.

Example:

type I interface {
	F(params []int) int
}

Output:

// F implements a.I
func (mmF *IMock) F(params []int) (i1 int) {
	mm_atomic.AddUint64(&mmF.beforeFCounter, 1)
	defer mm_atomic.AddUint64(&mmF.afterFCounter, 1)

	if mmF.inspectFuncF != nil {
		mmF.inspectFuncF(params)
	}

	params := &IMockFParams{params}

	// Record call args
	mmF.FMock.mutex.Lock()
	mmF.FMock.callArgs = append(mmF.FMock.callArgs, params)
	mmF.FMock.mutex.Unlock()

	for _, e := range mmF.FMock.expectations {
		if minimock.Equal(e.params, params) {
			mm_atomic.AddUint64(&e.Counter, 1)
			return e.results.i1
		}
	}

	if mmF.FMock.defaultExpectation != nil {
		mm_atomic.AddUint64(&mmF.FMock.defaultExpectation.Counter, 1)
		want := mmF.FMock.defaultExpectation.params
		got := IMockFParams{params}
		if want != nil && !minimock.Equal(*want, got) {
			mmF.t.Errorf("IMock.F got unexpected parameters, want: %#v, got: %#v%s\n", *want, got, minimock.Diff(*want, got))
		}

		results := mmF.FMock.defaultExpectation.results
		if results == nil {
			mmF.t.Fatal("No results are set for the IMock.F")
		}
		return (*results).i1
	}
	if mmF.funcF != nil {
		return mmF.funcF(params)
	}
	mmF.t.Fatalf("Unexpected call to IMock.F. %v", params)
	return
}```

[hexdigest]

Hi @o1egl

Thank you for posting the bug. Please check if v3.0.1 works for you.
Alternatively you can try v2.1.9 if you don't adopted go modules yet.