Intellij-rust: Autocompletion for builtin macros

[SomeoneToIgnore]

Environment

• Intellij-Rust plugin version: v0.2.94.2119-191
• Rust toolchain version: 1.33.0 (2aa4c46cf 2019-02-28)
• IDE name and version: IntelliJ IDEA 2019.1 (Ultimate Edition) Build #IU-191.6183.62, built on March 21, 2019
• Operating system: macOS 10.14.3

Problem description

There is no assert! macro complete suggestion:

Also, it's impossible to navigate to its definition.
This seems to be strange, since if you use the assert_ne! macro and navigate to its declaration, the file macros.rs opens and there's an assert macro declaration in the bottom of it.

Would be also good to double check the other macros.

[vlad20012]

assert! macro is builtin. Definition in macros.rs exists only for documentation generation (pay attention to #[cfg(rustdoc)] on the module and the absence of #[macro_use]. So we can't navigate to it. BUT it is true that we should be able to complete builtin macros.