Fix file paths to section 35.1 & 35.2 example code (#2078)

Author: CBSpeir

src/rustc-driver/getting-diagnostics.md

@@ -11,7 +11,7 @@ and run [`TyCtxt.analysis`].
 The following was tested with <!-- date-check: september 2024 --> `nightly-2024-09-16`:
 
 ```rust
-{{#include ../examples/rustc-driver-getting-diagnostics.rs}}
+{{#include ../../examples/rustc-driver-getting-diagnostics.rs}}
 ```
 
 [`rustc_interface`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_interface/index.html

src/rustc-driver/interacting-with-the-ast.md

@@ -8,7 +8,7 @@ To get the type of an expression, use the [`global_ctxt`] query to [get] a [`TyC
 The following was tested with <!-- date-check: may 2024 --> `nightly-2024-05-09`:
 
 ```rust
-{{#include ../examples/rustc-driver-interacting-with-the-ast.rs}}
+{{#include ../../examples/rustc-driver-interacting-with-the-ast.rs}}
 ```
 [get]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty/context/struct.GlobalCtxt.html#method.enter
 [`global_ctxt`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_interface/queries/struct.Queries.html#method.global_ctxt