Add semantic analysis benchmarks (#10373)

* Add semantic analysis benchmarks

- Add divan benchmarks for compiler semantic analysis phase
  (internal/compiler/benches/semantic_analysis.rs)
- Add custom allocator to track allocations in the benchmark.
- Add benches for individual phases of compilation and a proc-macro simulation mode.

Benchmarks cover:
- Lexing and parsing performance
- Full compilation with various stress scenarios
- Specific hotspots: many children, properties, exports,
  states, nested components, deep expressions, binding chains

Author: tilladam

Cargo.lock

@@ -85,6 +85,12 @@ i-slint-parser-test-macro = { path = "./parser-test-macro" }
 regex = "1.3.7"
 spin_on = { workspace = true }
 rayon = { workspace = true }
+divan = "0.1.14"
+
+[[bench]]
+name = "semantic_analysis"
+harness = false
+required-features = ["rust"]
 
 [package.metadata.docs.rs]
 features = [