fix: fix sourcemap when using object as define value

[hi-ogawa]

Description

• Closes sourcemap is invalid when environment variables do not exist #15771

I wrote my findings in #15771 (comment). The issue seems to be esbuild including multiple sources in source map when it cannot replace "define" value with primitive (esbuild example) while later pipeline for source map collapsing/remapping doesn't expect such extra sources entries.

Since it doesn't look possible to control how esbuild output source entries, I think one way to "fix" this issue is to simply remove all extra source map entries which doesn't correspond to the original source. In this PR, I attempted this approach by using utilities from @jridgewell/trace-mapping (which is mostly re-exports of @jridgewell/sourcemap-codec).

todo

• test
  • rollup build
  • ssr dev

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

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