formatting file with zls causes infinite loop in memory allocator #979
Description
Zig Version
0.11.0-dev.1393+38eebf3c4
Zig Language Server Version
Steps to Reproduce
When using zls to format files, it seems to infinite loop on certain input. Generally it seems to be more likely to happen on longer files. zig fmt works as expected.
File that reproduces the issue (too long to fit in an issue)
Expected Behavior
Formats successfully, like zig fmt
Actual Behavior
It infinite loops until it uses enough memory for the OOM killer to kill it. This type of issue is often caused by looping over or duplicating a slice that is undefined, in which cause the len field is something absurdly large (due to undefined memory)