[NodeTypeResolver] Clean up mixed type check on TypeFactory::uniquateTypes() #31335

Job	Run time
End to end test - e2e/applied-rule-change-docblock	21s
End to end test - e2e/applied-auto-import	17s
End to end test - e2e/applied-rule-removed-node	21s
End to end test - e2e/applied-polyfill-php80	17s
End to end test - e2e/invalid-paths	15s
End to end test - e2e/no-parallel-reflection-resolver	20s
End to end test - e2e/different-path-over-skip-config	21s
End to end test - e2e/only-option	16s
End to end test - e2e/parallel-reflection-resolver	18s
End to end test - e2e/parallel with space	17s
End to end test - e2e/parallel-kaizen-applied-rules	24s
End to end test - e2e/applied-rule-return-array-nodes	21s
End to end test - e2e/only-option-quote-single	22s
End to end test - e2e/only-option-quote-double-equalnone	23s
End to end test - e2e/parallel-custom-config	22s
End to end test - e2e/print-new-node	21s
End to end test - e2e/only-option-quote-single-bsdouble	21s
End to end test - e2e/only-option-quote-single-equalnone	25s
	6m 2s

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