diff highlights invalid differences

[umarashfaq]

🐛 Bug Report

When you're comparing two objects and you use expect.any(String) for some keys, and the test fails for some reason, diff highlights all those places where you used expect.any(String) which is very confusing.

To Reproduce

expect([
            {
                a: expect.any(String),
                b: '',
            },
            {
                c: expect.any(String),
            },
        ]).toEqual([
            {
                a: 'foo',
            },
            {
                c: 'bar',
            },
        ]);

Expected behavior

In case of a failure, diff should not highlight expect.any(String).

Link to repl or repo (highly encouraged)

Not available

Run npx envinfo --preset jest

System:
    OS: macOS 10.14.6
    CPU: (12) x64 Intel(R) Core(TM) i9-8950HK CPU @ 2.90GHz
  Binaries:
    Node: 11.10.0 - ~/.nvm/versions/node/v11.10.0/bin/node
    Yarn: 1.15.2 - ~/src/accidentsint/node_modules/.bin/yarn
    npm: 6.7.0 - ~/.nvm/versions/node/v11.10.0/bin/npm

[jeysal]

Duplicate of #6184. Unfortunately way harder to fix atm than it looks

[github-actions]

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