add experimental swcPlugins next.config.js option

Author: jantimon

packages/next/build/swc/options.js

@@ -54,6 +54,7 @@ function getBaseSWCOptions({
       parser: parserConfig,
       experimental: {
         keepImportAssertions: true,
+        plugins: nextConfig.experimental.swcPlugins
       },
       transform: {
         // Enables https://github.com/swc-project/swc/blob/0359deb4841be743d73db4536d4a22ac797d7f65/crates/swc_ecma_ext_transforms/src/jest.rs

packages/next/server/config-shared.ts

@@ -86,6 +86,7 @@ export interface ExperimentalConfig {
   disablePostcssPresetEnv?: boolean
   swcMinify?: boolean
   swcFileReading?: boolean
+  swcPlugins?: Array<[string, Record<string, any>]>
   cpus?: number
   sharedPool?: boolean
   plugins?: boolean