RFR (XS) 8015265: revise the fix for 8007037

[Calvin Cheung]

While working on a fix for 8014431, it was found that the fix for 
8007037 in constantPool.cpp needs to be revised. David H. suggested that 
this should be addressed in a separate bug fix.

The problem is that the following statement:
bool match = compare_entry_to(k1, cp2, k2, CHECK_false) &&
                         compare_operand_to(i1, cp2, i2, CHECK_false);

expands to:

bool match = compare_entry_to(k1, cp2, k2, THREAD);
if (HAS_PENDING_EXCEPTION) return false;
(0) && compare_operand_to(i1, cp2, i2, THREAD);
if (HAS_PENDING_EXCEPTION) return false;
(0);

so the match has the wrong value.

webrev: http://cr.openjdk.java.net/~ccheung/8015265/webrev/
bug: http://bugs.sun.com/view_bug.do?bug_id=8015265    (not available yet)
jbs: https://jbs.oracle.com/bugs/browse/JDK-8015265

Testing:
     jprt
     vm.quick on linux_x64

thanks,
Calvin