Bug 10342 – Error spew from specific compile order

The following test case results in an unnecessary spew of invalid errors. ---- a.d ---- void main() { x; } ---- b.d ---- import std.stdio; ---- c.d ---- import std.stdio; immutable ushort p; void foo() { writefln("%d", p); } ---- Compile with ---- dmd a.d b.d c.d ---- Output ---- a.d(1): Error: undefined identifier x, did you mean module a? std/format.d(1205): Error: cannot implicitly convert expression (obj) of type immutable(ushort) to immutable(bool) std/format.d(2950): Error: template instance std.format.formatValue!(LockingTextWriter, immutable(ushort), char) error instantiating ... lots more similar nonsense errors ... NOTES: - The file order in the compile is important, compiling c.d before b.d removes the issue - Yes, the b.d file is necessary to repro Expected behaviour: only the first line of the output should be presented (undefined identifier x)

Running the test case on git HEAD Ubuntu 16.04 results in successful compilation. Closing as WORKSFORME. Please reopen if I am missing something.