RFR(XS) 8191930: [Graal] emits unparseable XML into compile log

[Tom Rodriguez]

http://cr.openjdk.java.net/~never/8191930/webrev
https://bugs.openjdk.java.net/browse/JDK-8191930

This was something that was fixed in 8 but never made it into 9+ I think 
because the code moved after 8.  Tested by forcing a bailout with the 
problematic string and inspecting the resulting xml.

<failure reason='Code installation failed: dependencies failed
Failed dependency of type call_site_target_value
   object = a 
'jdk/nashorn/internal/runtime/linker/LinkerCallSite'{0x00000005df235660}
   object = a 
'java/lang/invoke/BoundMethodHandle$Species_LLLL'{0x00000005df235680}
   witness = jdk.nashorn.internal.runtime.linker.LinkerCallSite '/>