RFR 8029567: Clean up linkResolver code

[Coleen Phillimore]

Summary: Moved non-const reference return values to actual return 
values, refactored error handling code, pass CLD rather than 
class_loader oop, remove oop from Method* variable names.

Also modified the long parameter lists into a class LinkInfo to hold 
information from the constant pool that is always passed through several 
layers of functions together.  Also reformatted to split parameter list 
lines to some reasonable width.

The type methodHandle should be passed as const reference types to avoid 
copy construction, because it has a non-trivial destructor. This sort of 
change could be made in more places in the JVM, but I stopped with 
linkResolver.

Ran all hotspot jtreg tests, jck lang/vm/api/java_lang tests, internal 
testbase tests: vm.quick.testlist, vm.defmeth.testlist, proposed new 
selection-resolution tests, jdk/java/lang/invoke tests (see RFR).

open webrev at http://cr.openjdk.java.net/~coleenp/8029567/
bug link https://bugs.openjdk.java.net/browse/JDK-8029567

Thanks,
Coleen