I compiled a project with GCC and warnings plugin (GCC parser).

Warnings are found in three files. All warning are normal priority.
abstractnode.h 10
interpreter.h 10
parser.h 4

Click into Normal from summary page, it shows:
abstractnode.h 1
interpreter.h 1
parser.h 1

In other builds, there is similar problem, that warnings in one file are identified as one for a certain priority.

For detail, please see attachment PNGs