hg: jdk/submit: 8209586: AARCH64: SymbolTable changes throw assert on aarch64

[gerard.ziemski at oracle.com]

Changeset: 72c82bd05971
Author:    gziemski
Date:      2018-08-17 11:56 -0500
URL:       http://hg.openjdk.java.net/jdk/submit/rev/72c82bd05971

8209586: AARCH64: SymbolTable changes throw assert on aarch64
Summary: Cast the comparison value to match the signdeness
Reviewed-by: gziemski, coleenp
Contributed-by: stuart.monteigh at linaro.org

! src/hotspot/share/classfile/symbolTable.cpp