[compiler] Show logged errors in playground

In playground it's helpful to show all errors, even those that don't completely abort compilation. For example, to help demonstrate that the compiler catches things like setState in effects. This detects these errors and ensures we show them.

compiler/apps/playground/components/Editor/EditorImpl.tsx

@@ -44,6 +44,7 @@ import {
   PrintedCompilerPipelineValue,
 } from './Output';
 import {transformFromAstSync} from '@babel/core';
+import {LoggerEvent} from 'babel-plugin-react-compiler/dist/Entrypoint';
 
 function parseInput(
   input: string,
@@ -143,6 +144,7 @@ const COMMON_HOOKS: Array<[string, Hook]> = [
 function compile(source: string): [CompilerOutput, 'flow' | 'typescript'] {
   const results = new Map<string, Array<PrintedCompilerPipelineValue>>();
   const error = new CompilerError();
+  const otherErrors: Array<CompilerErrorDetail> = [];
   const upsert: (result: PrintedCompilerPipelineValue) => void = result => {
     const entry = results.get(result.name);
     if (Array.isArray(entry)) {
@@ -210,7 +212,11 @@ function compile(source: string): [CompilerOutput, 'flow' | 'typescript'] {
       },
       logger: {
         debugLogIRs: logIR,
-        logEvent: () => {},
+        logEvent: (_filename: string | null, event: LoggerEvent) => {
+          if (event.kind === 'CompileError') {
+            otherErrors.push(new CompilerErrorDetail(event.detail));
+          }
+        },
       },
     });
     transformOutput = invokeCompiler(source, language, opts);
@@ -237,6 +243,10 @@ function compile(source: string): [CompilerOutput, 'flow' | 'typescript'] {
       );
     }
   }
+  // Only include logger errors if there weren't other errors
+  if (!error.hasErrors() && otherErrors.length !== 0) {
+    otherErrors.forEach(e => error.push(e));
+  }
   if (error.hasErrors()) {
     return [{kind: 'err', results, error: error}, language];
   }