Function push

packages/opencode/src/lsp/client.ts:306–309

(target: string, items: Diagnostic[])

    const byFile = new Map<string, Diagnostic[]>()
    const push = (target: string, items: Diagnostic[]) => {
      const existing = byFile.get(target) ?? []
      byFile.set(target, existing.concat(items))
    }

    let handled = false
    let matched = false