Include source files w/o method bodies in the PDB documents

[tmat]

Currently the compiler does not list source files in the debug documents in the PDB that are part of the compilation but do not have any method body. These documents are only added in order to support sequence points.

There are other scenarios than stepping that would benefit from all source files being captured in the PDB. For example, Go To Definition, or validating that the assembly was built from specific source file content for auditing or EnC.

UPDATE:
Debugging of UWP and Blazor projects is currently broken because EnC is not able to determine the checksum of source files that are missing.