Bug 16798 – Extend -Ipath switch to -Imodule=path so path heirarchy doesn't have to match package heirarchy

The trouble comes from when code tends to wind up in multiple locations, and refactoring the package/module names is undesirable for various reasons. It winds up forcing all modules to be specified on the command line, meaning they are all subject to the same compiler switches, and may be too big to compile all at once. This enhancement enables each package/module to have an individual path/file associated with it. The package/module will be matched from the left. The -Ipath still applies to the result. For example: -Ifoo=bar/abc import foo; // looks up bar/abc.d -Ia.b=c import a.b.e; // looks up c/e.d import x.a.b.e; // looks up x/a/b/e.d

Commits pushed to master at https://github.com/dlang/dmd https://github.com/dlang/dmd/commit/1e77dfac5e4e8564fa8eef4f3184f41b0cd31768 fix Issue 16798 - Extend -Ipath switch to -Imodule=path so path heirarchy doesn't have to match package heirarchy https://github.com/dlang/dmd/commit/72b20335f9dd47fc88d6a6c92ef312f0b5f81392 Merge pull request #6286 from WalterBright/fix16798 fix Issue 16798 - add -mv=path.module=filespec switch so path hiera…

Commits pushed to scope at https://github.com/dlang/dmd https://github.com/dlang/dmd/commit/1e77dfac5e4e8564fa8eef4f3184f41b0cd31768 fix Issue 16798 - Extend -Ipath switch to -Imodule=path so path heirarchy doesn't have to match package heirarchy https://github.com/dlang/dmd/commit/72b20335f9dd47fc88d6a6c92ef312f0b5f81392 Merge pull request #6286 from WalterBright/fix16798

Commits pushed to newCTFE at https://github.com/dlang/dmd https://github.com/dlang/dmd/commit/1e77dfac5e4e8564fa8eef4f3184f41b0cd31768 fix Issue 16798 - Extend -Ipath switch to -Imodule=path so path heirarchy doesn't have to match package heirarchy https://github.com/dlang/dmd/commit/72b20335f9dd47fc88d6a6c92ef312f0b5f81392 Merge pull request #6286 from WalterBright/fix16798