ICE when calling function as part of vector initializer

[jdm]

rusti> let a = [0, ..ptr::null()];
rust: task failed at 'Unsupported constant expr', /run/media/jdm/ssd/rust/src/librustc/middle/const_eval.rs:236

[alexcrichton]

Using today's compiler, you now get:

rusti> let a = [0, ..ptr::null()];
<anon>:36:14: 36:26 error: expected constant integer for repeat count but found variable
<anon>:36 let a = [0, ..ptr::null()];
                        ^~~~~~~~~~~~
error: aborting due to previous error
rust: task failed at 'explicit failure', /Users/alex/code/rust-opt/src/libsyntax/diagnostic.rs:93

Which is now helpfully an error instead of an ICE!