panic in `exprPosition`

[pgavlin]

partial stack trace:

panic({0x2811d00?, 0x541bc90?})
    /usr/local/go/src/runtime/panic.go:914 +0x218
github.com/pulumi/esc/ast.(*StringExpr).Syntax(0x4002a0f8d8?)
    <autogenerated>:1
github.com/pulumi/esc/ast.exprPosition({0x3711330?, 0x0?})
    /go/src/github.com/pulumi/esc/ast/expr.go:57 +0x30
github.com/pulumi/esc/ast.ExprError({0x3711330?, 0x0?}, {0x40026b9d00, 0x1b})
    /go/src/github.com/pulumi/esc/ast/expr.go:67 +0x2c
github.com/pulumi/esc/eval.(*evalContext).error(0x4002a10178, {0x3711330?, 0x0?}, {0x40026b9d00?, 0x1?})
    /go/src/github.com/pulumi/esc/eval/eval.go:176 +0x3c
github.com/pulumi/esc/eval.(*evalContext).errorf(0x40026b9ca0?, {0x3711330, 0x0}, {0x36d8370?, 0x0?}, {0x4002a0fac0?, 0xffff4509e7c0?, 0xffff8bfcf108?})
    /go/src/github.com/pulumi/esc/eval/eval.go:182 +0x5c
github.com/pulumi/esc/eval.(*evalContext).evaluateImport(0x4002a10178, 0x400466ad80?, 0x40037cbce0)
    /go/src/github.com/pulumi/esc/eval/eval.go:414 +0x2a0
github.com/pulumi/esc/eval.(*evalContext).evaluateImports(0x4002a10178)
    /go/src/github.com/pulumi/esc/eval/eval.go:371 +0x118

[pulumi-bot]

Cannot close issue:

• does not have required labels: kind/

Please fix these problems and try again.