UTBot don't decorate struct field [BUG]

[ladisgin]

Description
UTBot don't decorate struct field

To Reproduce
Steps to reproduce the behavior:

1. Generate tests for equals from c-example/lib/keywords/keywords_dot_c_test.cpp
2. Try run tests

Expected behavior
Test passed

Actual behavior
Compilation error

Visual proofs (screenshots, logs)

TEST(regression, equals_test_1)
{
    _Bool actual = equals({
        .public = 0L,
        .private = 0L
    });
    EXPECT_EQ(true, actual);
}

[ladisgin]

#470

[tyuldashev]

This specific problem fixed but there are other similar problems like #534 and #535