tree a984b3eea2d7b4ce99ebcb7d1818f8e7cf825f5f
parent f4cd66831c97f672f362549dcd2734f3ec89530e
author cushon <cushon@google.com> 1477949430 -0700
committer Liam Miller-Cushon <cushon@google.com> 1477970098 -0700

Disambiguate type annotations on fields, parameters, and methods

Given a declaration like `private @A int x;` or `@A private int x;`,
there are three possibilities:

* `@A` is a declaration annotation on the field
* `@A` is a `TYPE_USE` annotation on the type
* `@A` sets `TYPE_USE` _and_ `FIELD` targets, and appears in the
  bytecode as both a declaration annotation and as a type annotation

This can't be determined syntactically -- note that the presence of
other modifiers before or after the annotation has no bearing on whether
the annotation targets the type or the declaration.

So, we wait until constant binding is done, read the `@Target`
meta-annotation for each ambiguous annotation, and move it to the
appropriate location.

MOE_MIGRATED_REVID=137749757