8148772: VM crash in nsk/jvmti/RedefineClasses/StressRedefine: assert failed: Corrupted constant pool
8151546: nsk/jvmti/RedefineClasses/StressRedefine fails in hs nightly
Summary: ConstantPool::resolve_constant_at_impl() isn't thread safe for MethodHandleInError and MethodTypeInError and Constant pool merging is not thread safe for source_file_name.
Reviewed-by: sspitsyn, dcubed