[Bug ipa/63664] ipa-icf pass fails with segfault

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63664
Bug 63664 depends on bug 63574, which changed state.

Bug 63574 Summary: [5 Regression] ICE building libjava (segfault) on arm-linux-gnueabihf
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63574

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED