[fpc-devel] fpc does not recompile units, even used units have changed.

[Martin Frb]

So far I only was able to reproduce this with the attached 
(experimental) unit, that has many and nested generics and inlines.

Update to the latest Lazarus trunc.
Replace components\lazutils\lazlistclasses.pas with attached unit
open components\lazutils\test\TestLazStorageMem.lpr

Force clean builds of the package and project

Running the test TestMemRound (ignore that it fails) will output the 
debugln from line 833 in LazListClasses

No comment the debugln on line 833 in LazListClasses.
   function TLazRoundBufferListMemBase.GetItemPointer(Index: Integer): 
TPItemT;
   ...
   //debugln(['TLazRoundBufferListMemBase.GetItemPointer ']);

If I recompile I can see that LazListClasses is recompiled (hints are 
produced for the unit)
But TestLazStorageMemCase1 is not recompiled, and the debugln still in 
place.
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