Fix error baselines for empty files

internal/testutil/tsbaseline/error_baseline.go

@@ -152,8 +152,7 @@ func iterateErrorBaseline(t *testing.T, inputFiles []*harnessutil.TestFile, inpu
 
 	// 'merge' the lines of each input file with any errors associated with it
 	dupeCase := map[string]int{}
-	nonEmptyFiles := core.Filter(inputFiles, func(f *harnessutil.TestFile) bool { return len(f.Content) > 0 })
-	for _, inputFile := range nonEmptyFiles {
+	for _, inputFile := range inputFiles {
 		// Filter down to the errors in the file
 		fileErrors := core.Filter(diagnostics, func(e *ast.Diagnostic) bool {
 			return e.File() != nil &&

testdata/baselines/reference/submodule/compiler/checkJsdocTypeTagOnExportAssignment1.errors.txt

@@ -1,6 +1,8 @@
 a.js(8,16): error TS2739: Type '{ c: boolean; }' is missing the following properties from type 'Foo': a, b
 
 
+==== checkJsdocTypeTagOnExportAssignment1.js (0 errors) ====
+
 ==== a.js (1 errors) ====
     /**
      * @typedef {Object} Foo

testdata/baselines/reference/submodule/compiler/checkJsdocTypeTagOnExportAssignment2.errors.txt

@@ -1,6 +1,8 @@
 b.js(2,16): error TS2739: Type '{ c: boolean; }' is missing the following properties from type 'Foo': a, b
 
 
+==== checkJsdocTypeTagOnExportAssignment2.js (0 errors) ====
+
 ==== a.ts (0 errors) ====
     export interface Foo {
         a: number;

testdata/baselines/reference/submodule/compiler/checkJsdocTypeTagOnExportAssignment3.errors.txt

@@ -1,6 +1,8 @@
 a.js(10,16): error TS2739: Type '{ c: number; }' is missing the following properties from type 'Foo': a, b
 
 
+==== checkJsdocTypeTagOnExportAssignment3.js (0 errors) ====
+
 ==== a.js (1 errors) ====
     /**
      * @typedef {Object} Foo

testdata/baselines/reference/submodule/compiler/checkJsdocTypeTagOnExportAssignment4.errors.txt

@@ -1,6 +1,8 @@
 a.js(6,16): error TS2352: Conversion of type 'string' to type 'number' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first.
 
 
+==== checkJsdocTypeTagOnExportAssignment4.js (0 errors) ====
+
 ==== a.js (1 errors) ====
     /**
      * @typedef {number} Foo

testdata/baselines/reference/submodule/compiler/duplicatePackage_globalMerge.errors.txt

@@ -20,6 +20,8 @@
 
 ==== /tests/node_modules/@types/react/package.json (0 errors) ====
     { "name": "@types/react", "version": "16.4.6" }
+==== /tests/node_modules/@types/react/index.d.ts (0 errors) ====
+
 ==== /node_modules/@types/react/package.json (0 errors) ====
     { "name": "@types/react", "version": "16.4.6" }
 ==== /node_modules/@types/react/index.d.ts (1 errors) ====

testdata/baselines/reference/submodule/compiler/moduleResolutionWithExtensions_notSupported.errors.txt

@@ -13,4 +13,10 @@
     import js from "./js"; // OK because it's an untyped module.
                    ~~~~~~
 !!! error TS2307: Cannot find module './js' or its corresponding type declarations.
+
+==== /tsx.tsx (0 errors) ====
+
+==== /jsx.jsx (0 errors) ====
+
+==== /js.js (0 errors) ====
 

testdata/baselines/reference/submodule/compiler/moduleResolutionWithExtensions_notSupported.errors.txt.diff

@@ -21,12 +21,8 @@
 -!!! error TS6142: Module './jsx' was resolved to '/jsx.jsx', but '--jsx' is not set.
 +!!! error TS2307: Cannot find module './jsx' or its corresponding type declarations.
      import js from "./js"; // OK because it's an untyped module.
--    
--==== /tsx.tsx (0 errors) ====
--    
--==== /jsx.jsx (0 errors) ====
--    
--==== /js.js (0 errors) ====
 +                   ~~~~~~
 +!!! error TS2307: Cannot find module './js' or its corresponding type declarations.
+
+ ==== /tsx.tsx (0 errors) ====
 

testdata/baselines/reference/submodule/compiler/moduleResolutionWithExtensions_notSupported2.errors.txt

@@ -5,4 +5,6 @@
     import jsx from "./jsx";
                     ~~~~~~~
 !!! error TS2306: File '/jsx.jsx' is not a module.
+
+==== /jsx.jsx (0 errors) ====
 

testdata/baselines/reference/submodule/compiler/moduleResolutionWithExtensions_notSupported3.errors.txt

@@ -5,4 +5,6 @@
     import jsx from "./jsx";
                     ~~~~~~~
 !!! error TS2307: Cannot find module './jsx' or its corresponding type declarations.
+
+==== /jsx.jsx (0 errors) ====
 

testdata/baselines/reference/submodule/compiler/moduleResolutionWithExtensions_notSupported3.errors.txt.diff

@@ -9,4 +9,6 @@
 +    import jsx from "./jsx";
 +                    ~~~~~~~
 +!!! error TS2307: Cannot find module './jsx' or its corresponding type declarations.
++    
++==== /jsx.jsx (0 errors) ====
 +    

testdata/baselines/reference/submodule/compiler/requireOfAnEmptyFile1.errors.txt

@@ -5,4 +5,6 @@ requireOfAnEmptyFile1_a.ts(1,21): error TS2306: File 'requireOfAnEmptyFile1_b.ts
     import fs = require('./requireOfAnEmptyFile1_b');
                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~
 !!! error TS2306: File 'requireOfAnEmptyFile1_b.ts' is not a module.
+
+==== requireOfAnEmptyFile1_b.ts (0 errors) ====
 

testdata/baselines/reference/submodule/compiler/requireOfJsonFileWithNoContent.errors.txt

@@ -17,4 +17,6 @@ file1.ts(6,13): error TS2339: Property 'b' does not exist on type '{}'.
                 ~
 !!! error TS2339: Property 'b' does not exist on type '{}'.
     }
+
+==== b.json (0 errors) ====
 

testdata/baselines/reference/submodule/conformance/plainJSGrammarErrors3.errors.txt

@@ -1,6 +1,8 @@
 /a.js(2,5): error TS1308: 'await' expressions are only allowed within async functions and at the top levels of modules.
 
 
+==== plainJSGrammarErrors3.js (0 errors) ====
+
 ==== /a.js (1 errors) ====
     function foo() {
         await new Promise(undefined);

testdata/baselines/reference/submoduleAccepted/compiler/checkJsdocTypeTagOnExportAssignment1.errors.txt.diff

@@ -2,17 +2,11 @@
 +++ new.checkJsdocTypeTagOnExportAssignment1.errors.txt
 @@= skipped -0, +0 lines =@@
 -a.js(8,18): error TS2353: Object literal may only specify known properties, and 'c' does not exist in type 'Foo'.
--
--
--==== checkJsdocTypeTagOnExportAssignment1.js (0 errors) ====
--    
 +a.js(8,16): error TS2739: Type '{ c: boolean; }' is missing the following properties from type 'Foo': a, b
-+
-+
- ==== a.js (1 errors) ====
-     /**
-      * @typedef {Object} Foo
-@@= skipped -11, +9 lines =@@
+
+
+ ==== checkJsdocTypeTagOnExportAssignment1.js (0 errors) ====
+@@= skipped -11, +11 lines =@@
 
      /** @type {Foo} */
      export default { c: false };

testdata/baselines/reference/submoduleAccepted/compiler/checkJsdocTypeTagOnExportAssignment2.errors.txt.diff

@@ -2,17 +2,11 @@
 +++ new.checkJsdocTypeTagOnExportAssignment2.errors.txt
 @@= skipped -0, +0 lines =@@
 -b.js(2,18): error TS2353: Object literal may only specify known properties, and 'c' does not exist in type 'Foo'.
--
--
--==== checkJsdocTypeTagOnExportAssignment2.js (0 errors) ====
--    
 +b.js(2,16): error TS2739: Type '{ c: boolean; }' is missing the following properties from type 'Foo': a, b
-+
-+
- ==== a.ts (0 errors) ====
-     export interface Foo {
-         a: number;
-@@= skipped -11, +9 lines =@@
+
+
+ ==== checkJsdocTypeTagOnExportAssignment2.js (0 errors) ====
+@@= skipped -11, +11 lines =@@
  ==== b.js (1 errors) ====
      /** @type {import("./a").Foo} */
      export default { c: false };

testdata/baselines/reference/submoduleAccepted/compiler/checkJsdocTypeTagOnExportAssignment4.errors.txt.diff

@@ -2,17 +2,11 @@
 +++ new.checkJsdocTypeTagOnExportAssignment4.errors.txt
 @@= skipped -0, +0 lines =@@
 -a.js(6,16): error TS2322: Type 'string' is not assignable to type 'number'.
--
--
--==== checkJsdocTypeTagOnExportAssignment4.js (0 errors) ====
--    
 +a.js(6,16): error TS2352: Conversion of type 'string' to type 'number' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first.
-+
-+
- ==== a.js (1 errors) ====
-     /**
-      * @typedef {number} Foo
-@@= skipped -10, +8 lines =@@
+
+
+ ==== checkJsdocTypeTagOnExportAssignment4.js (0 errors) ====
+@@= skipped -10, +10 lines =@@
      /** @type {Foo} */
      export default "";
                     ~~

testdata/baselines/reference/submoduleAccepted/compiler/moduleResolutionWithExtensions_notSupported2.errors.txt.diff

@@ -9,7 +9,7 @@
      import jsx from "./jsx";
                      ~~~~~~~
 -!!! error TS6142: Module './jsx' was resolved to '/jsx.jsx', but '--jsx' is not set.
--    
--==== /jsx.jsx (0 errors) ====
 +!!! error TS2306: File '/jsx.jsx' is not a module.
+
+ ==== /jsx.jsx (0 errors) ====