037 expression scope capture

// Test: Expression implicit mapping and auto-comptime
// 1. Verifies that Expression args with dots (like 'data.value > 10') correctly map to 'expr'
// 2. Verifies that Expression fields auto-add 'comptime' annotation (no [comptime] needed)

const std = @import("std");

// Event with Expression field - should auto-mark as comptime
~event check_expr { expr: Expression }

// Proc receives expr as []const u8
~proc check_expr {
    std.debug.print("Expression: {s}\n", .{expr});
}

// Test: Expression with dotted access - should map to 'expr' field
// Before fix: 'data.value > 10' was parsed as name='value > 10', value='data.value > 10'
// After fix: name='expr', value='data.value > 10'
const data = .{ .value = 42 };
~check_expr(data.value > 10)