Prior to this commit, the Test Bean Override feature provided support
for overriding beans based on qualifier annotations in several
scenarios; however, qualifier annotations got lost if they were
declared on the return type of the @Bean method for the bean being
overridden and the @BeanOverride (such as @MockitoBean) was based on
a supertype of that return type.
To address that, this commit sets the @BeanOverride field as the
"qualified element" in the RootBeanDefinition to ensure that qualifier
annotations are available for subsequent autowiring candidate
resolution.
Closes gh-34646
374c3b4545