Fixed the linting of reducer files

.prettierignore

@@ -9,3 +9,4 @@ packages/website/.docusaurus
 packages/squiggle-lang/lib
 packages/squiggle-lang/.nyc_output/
 packages/squiggle-lang/coverage/
+packages/squiggle-lang/.cache/

packages/squiggle-lang/.prettierignore

@@ -4,3 +4,4 @@ lib
 *.gen.tsx
 .nyc_output/
 coverage/
+.cache/

packages/squiggle-lang/__tests__/Reducer/Reducer_TestHelpers.res

@@ -17,7 +17,10 @@ let expectEvalToBe = (expr: string, answer: string) =>
   Reducer.evaluate(expr)->ExpressionValue.toStringResult->expect->toBe(answer)
 
 let expectEvalBindingsToBe = (expr: string, bindings: Reducer.externalBindings, answer: string) =>
-  Reducer.evaluateUsingExternalBindings(expr, bindings)->ExpressionValue.toStringResult->expect->toBe(answer)
+  Reducer.evaluateUsingExternalBindings(expr, bindings)
+  ->ExpressionValue.toStringResult
+  ->expect
+  ->toBe(answer)
 
 let expectEvalPartialBindingsToBe = (
   expr: string,

packages/squiggle-lang/src/rescript/Reducer/Reducer_Expression/Reducer_Expression.res

@@ -136,7 +136,9 @@ let evalPartialUsingExternalBindings_ = (codeText: string, bindings: T.bindings)
   Therefore all statments are assignments.
 */
 let evalOuterWBindings_ = (codeText: string, bindings: T.bindings) => {
-  parseOuter(codeText)->Result.flatMap(expression => expression->evalUsingExternalBindingsExpression_(bindings))
+  parseOuter(codeText)->Result.flatMap(expression =>
+    expression->evalUsingExternalBindingsExpression_(bindings)
+  )
 }
 
 /*