mathlib3

e2cda0bf - chore(*): Prevent lemmas about the injectivity of `coe_fn` introducing un-reduced lambda terms (#8386)

chore(*): Prevent lemmas about the injectivity of `coe_fn` introducing un-reduced lambda terms (#8386) This follows on from #6344, and fixes every result for `function.injective (λ` that is about coe_fn.