Bug#911503: ipe-tools FTBFS 'memCheck' is not a member of 'Object'

[peter green]

package: ipe-tools
severity: serious
version: 1:7.2.7-1

ipe-tools failed to build from source during the re-builds for the poppler transition.

https://buildd.debian.org/status/fetch.php?pkg=ipe-tools&arch=amd64&ver=1%3A7.2.7-1%2Bb3&stamp=1540034720&raw=0

> pdftoipe.cpp: In function 'int main(int, char**)':
> pdftoipe.cpp:160:11: error: 'memCheck' is not a member of 'Object'
>     Object::memCheck(stderr);
>             ^~~~~~~~
> pdftoipe.cpp:161:3: error: 'gMemReport' was not declared in this scope
>     gMemReport(stderr);
>     ^~~~~~~~~~
> make[2]: *** [<builtin>: pdftoipe.o] Error 1