Clean up terminology for shared methods within the JVM for indy and condy support

Many methods in the JVM are used by both invokedynamic and dynamic constant but still have a name that contains the word "invoke_dynamic" within them. For example:

ConstantPool::invoke_dynamic_name_and_type_ref_index_at
ConstantPool::invoke_dynamic_bootstrap_specifier_index
ConstantPool::invoke_dynamic_operand_base

This is a small enhancement task to clean up these names with the intention of making them more common for both indy and condy.