Resolve type of simple labeled block

[FnControlOption]

For example, the following snippet is found in std.testing:

pub var allocator_instance = b: {
    if (!builtin.is_test)
        @compileError("Cannot use testing allocator outside of test block");
    break :b std.heap.GeneralPurposeAllocator(.{}){};
};

[Techatrix]

Can you add a test case in completion.zig.

[Techatrix]

If you wish to follow up and resolve this TODO, helper functions like iterateChildrenRecursive may help you traverse the ast while searching for break statements.

[FnControlOption]

I don't have time right now, but I'll definitely look into this later. I'm thinking of maybe editing the callback parameter to return a bool or enum to indicate whether to skip the current node. This is needed to avoid false positives:

const std = @import("std");
pub fn main() void {
    const foo = blk: {
        const Bar = struct {
            fn bar(_: @This()) void {
                _ = blk: {
                    break :blk "bar";
                };
            }
        };
        (Bar{}).bar();
        break :blk "foo";
    };
    std.debug.print("{s}\n", .{foo});
}