[11] RFR(XS): 8197608: MacroAssembler::unimplemented calls global operator new[]

[Tobias Hartmann]

Hi,

please review the following fix that removes C heap allocation of string buffers:
https://bugs.openjdk.java.net/browse/JDK-8197608
http://cr.openjdk.java.net/~thartmann/8197608/webrev.00/

This is consistent with the implementation on ARM:
http://hg.openjdk.java.net/jdk/hs/file/040293c73621/src/hotspot/cpu/arm/macroAssembler_arm.cpp#l1710

Thanks,
Tobias