Fix build of host&target destination products with `--static-swift-stdlib`

[kateinoigakukun]

Motivation:

Given the following conditions:

• --static-swift-stdlib is enabled (it only affects "target" destination products, "host" destination products are always dynamic)
• the building subset contains both "host" and "target" destination products derived from the same product.
• the product imports Foundation (that has private dependency libs)

then the build randomly failed due to the race condition of the Objects.LinkFileList creation.

Reproducible project https://github.com/kateinoigakukun/swift-autolink-issue-repro

Modifications:

This commit fixes the issue by distinguishing the temporary link file list response file name by the -tool suffix.

I think it would be better to add assertions in LLBuildManifest to avoid such unintentional target overwrites later.

Result:

Fix the build for the above case.

[kateinoigakukun]

@swift-ci test

[kateinoigakukun]

@swift-ci test

[kateinoigakukun]

@swift-ci test

[kateinoigakukun]

@swift-ci test Windows

[kateinoigakukun]

@swift-ci test

[kateinoigakukun]

@swift-ci test

[kateinoigakukun]

@swift-ci test Windows

[kateinoigakukun]

@swift-ci test Windows

[kateinoigakukun]

@swift-ci test Windows