Fix typo

Author: sheetalkamat

src/compiler/types.ts

@@ -5719,15 +5719,15 @@ namespace ts {
     }
 
     /* @internal */
-    export interface SourceFileMapBeEmittedHost {
+    export interface SourceFileMayBeEmittedHost {
         getCompilerOptions(): CompilerOptions;
         isSourceFileFromExternalLibrary(file: SourceFile): boolean;
         getResolvedProjectReferenceToRedirect(fileName: string): ResolvedProjectReference | undefined;
         isSourceOfProjectReferenceRedirect(fileName: string): boolean;
     }
 
     /* @internal */
-    export interface EmitHost extends ScriptReferenceHost, ModuleSpecifierResolutionHost, SourceFileMapBeEmittedHost {
+    export interface EmitHost extends ScriptReferenceHost, ModuleSpecifierResolutionHost, SourceFileMayBeEmittedHost {
         getSourceFiles(): readonly SourceFile[];
         useCaseSensitiveFileNames(): boolean;
         getCurrentDirectory(): string;

src/compiler/utilities.ts

@@ -3679,7 +3679,7 @@ namespace ts {
     }
 
     /** Don't call this for `--outFile`, just for `--outDir` or plain emit. `--outFile` needs additional checks. */
-    export function sourceFileMayBeEmitted(sourceFile: SourceFile, host: SourceFileMapBeEmittedHost, forceDtsEmit?: boolean) {
+    export function sourceFileMayBeEmitted(sourceFile: SourceFile, host: SourceFileMayBeEmittedHost, forceDtsEmit?: boolean) {
         const options = host.getCompilerOptions();
         return !(options.noEmitForJsFiles && isSourceFileJS(sourceFile)) &&
             !sourceFile.isDeclarationFile &&