fix: ignore fileExists in tsc host (#7635)

Fixes #7630

cli/tests/fix_tsc_file_exists.out

@@ -0,0 +1 @@
+hello

cli/tests/integration_tests.rs

@@ -2378,6 +2378,11 @@ itest!(fix_js_imports {
   output: "fix_js_imports.ts.out",
 });
 
+itest!(fix_tsc_file_exists {
+  args: "run --quiet --reload tsc/test.js",
+  output: "fix_tsc_file_exists.out",
+});
+
 itest!(es_private_fields {
   args: "run --quiet --reload es_private_fields.js",
   output: "es_private_fields.js.out",

cli/tests/tsc/a.js

@@ -0,0 +1,2 @@
+import { v4 } from "./d.ts";
+export function a() {}

cli/tests/tsc/d.ts

@@ -0,0 +1,3 @@
+export function v4() {
+  return "hello";
+}

cli/tests/tsc/node_modules/b.js

@@ -0,0 +1,2 @@
+import c from "./c.js";
+export { c };

cli/tests/tsc/node_modules/c.js

@@ -0,0 +1 @@
+export default function c() {}

cli/tests/tsc/test.js

@@ -0,0 +1,4 @@
+import { a } from "./a.js";
+import { c } from "./node_modules/b.js";
+
+console.log("hello");

cli/tsc/99_main_compiler.js

@@ -278,8 +278,9 @@ delete Object.prototype.__proto__;
 
     /* TypeScript CompilerHost APIs */
 
-    fileExists(_fileName) {
-      return notImplemented();
+    fileExists(fileName) {
+      log(`compiler::host.fileExists("${fileName}")`);
+      return false;
     }
 
     getCanonicalFileName(fileName) {

tools/lint.py

@@ -66,13 +66,14 @@ def eslint():
         ":!:cli/tests/swc_syntax_error.ts",
         ":!:std/**/testdata/*",
         ":!:std/**/node_modules/*",
+        ":!:cli/bench/node*.js",
         ":!:cli/compilers/wasm_wrap.js",
+        ":!:cli/dts/**",
+        ":!:cli/tests/encoding/**",
         ":!:cli/tests/error_syntax.js",
         ":!:cli/tests/lint/**",
-        ":!:cli/tests/encoding/**",
-        ":!:cli/dts/**",
+        ":!:cli/tests/tsc/**",
         ":!:cli/tsc/*typescript.js",
-        ":!:cli/bench/node*.js",
     ])
     if source_files:
         max_command_len = 30000