Generated Identifier Conflict

The generated mock methods use some hardcoded variable/receiver names that can have conflicts with the argument names that are defined by the code for which the mock is generated when using the source generation method.

Example:

type Example interface {
    Method(_m, _mr, m, mr int)
}

// Method mocks base method
func (_m *MockExample) Method(_m int, _mr int, m int, mr int) {
    _m.ctrl.Call(_m, "Method", _m, _mr, m, mr)
}

In the above example one of the interface method parameters is called _m but unfortunately the generated receiver name is also called _m so the mock code won't compile.

The generator has to make sure that generated identifiers (e.g.: the receiver names) are always different from the arg names that might come from external sources.