unify the way we intercept missing MIR and C ABI calls; only intercept C ABI calls if MIR is missing
unify the way we intercept missing MIR and C ABI calls; only intercept C ABI calls if MIR is missing

graydon/rust,aidancully/rust,aidancully/rust,GBGamer/rust,aidancully/rust,rust-lang/miri,graydon/rust,aidancully/rust,graydon/rust,GBGamer/rust,graydon/rust,graydon/rust,GBGamer/rust,GBGamer/rust,GBGamer/rust,tsion/miri,GBGamer/rust,aidancully/rust,graydon/rust,GBGamer/rust,aidancully/rust,rust-lang/miri,rust-lang/miri,GBGamer/rust,rust-lang/miri