fix: suggestions from code review

Author: indietyp

libs/@local/hashql/eval/src/postgres/filter/tests.rs

@@ -48,6 +48,7 @@ use crate::{
 /// and returns everything needed for compilation.
 struct Fixture<'heap> {
     env: Environment<'heap>,
+    interner: crate::intern::Interner<'heap>,
     bodies: DefIdVec<Body<'heap>, &'heap Heap>,
     execution: DefIdVec<Option<ExecutionAnalysisResidual<&'heap Heap>>, &'heap Heap>,
 }
@@ -89,6 +90,7 @@ impl<'heap> Fixture<'heap> {
 
         Self {
             env,
+            interner: interner.into(),
             bodies,
             execution,
         }
@@ -151,11 +153,10 @@ fn format_body<'heap>(fixture: &Fixture<'heap>, heap: &'heap Heap) -> String {
 fn compile_filter_islands<'heap>(fixture: &Fixture<'heap>, heap: &'heap Heap) -> FilterReport {
     let mut scratch = Scratch::new();
     let def = fixture.def();
-    let interner = crate::intern::Interner::testing(heap);
 
     let context = CodeGenerationContext::new_in(
         &fixture.env,
-        &interner,
+        &fixture.interner,
         &fixture.bodies,
         &fixture.execution,
         heap,
@@ -278,11 +279,10 @@ fn compile_full_query_with_mask<'heap>(
 ) -> QueryReport {
     let mut scratch = Scratch::new();
     let def = fixture.def();
-    let interner = crate::intern::Interner::testing(heap);
 
     let mut context = CodeGenerationContext::new_in(
         &fixture.env,
-        &interner,
+        &fixture.interner,
         &fixture.bodies,
         &fixture.execution,
         heap,