[clang] [clang][Modules] Handle relocated modules during implicit module builds (PR #181836)

[Jan Svoboda via cfe-commits]

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@@ -1,7 +1,7 @@
 [
 {
   "directory": "DIR",
-  "command": "clang -E DIR/modules-fmodule-name-no-module-built.m -IInputs -D INCLUDE_HEADER2 -MD -MF DIR/modules_cdb.d -fmodules -fcxx-modules -fmodules-cache-path=DIR/module-cache -fimplicit-modules -fmodule-name=header3 -fimplicit-module-maps",
+  "command": "clang -E DIR/modules-fmodule-name-no-module-built.m -IDIR/Inputs -D INCLUDE_HEADER2 -MD -MF DIR/modules_cdb.d -fmodules -fcxx-modules -fmodules-cache-path=DIR/module-cache -fimplicit-modules -fmodule-name=header3 -fimplicit-module-maps",
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jansvoboda11 wrote:

So that's only for TU `"file-deps"`, right? https://github.com/llvm/llvm-project/blob/main/clang/lib/DependencyScanning/ModuleDepCollector.cpp#L962-L973 Those should be absolute too, unless we're talking about the P1689 output.

https://github.com/llvm/llvm-project/pull/181836