Allow nightly-only flags in -insiders builds (microsoft#46829)

weswigham · mprobst · commit b568e5309097 · 2022-01-10T12:28:42.000+01:00
diff --git a/src/compiler/program.ts b/src/compiler/program.ts
@@ -3160,7 +3160,7 @@ namespace ts {
         }
 
         function verifyCompilerOptions() {
-            const isNightly = stringContains(version, "-dev");
+            const isNightly = stringContains(version, "-dev") || stringContains(version, "-insiders");
             if (!isNightly) {
                 if (getEmitModuleKind(options) === ModuleKind.Node12) {
                     createOptionValueDiagnostic("module", Diagnostics.Compiler_option_0_of_value_1_is_unstable_Use_nightly_TypeScript_to_silence_this_error_Try_updating_with_npm_install_D_typescript_next, "module", "node12");

Original file line number	Diff line number	Diff line change
`@@ -3160,7 +3160,7 @@ namespace ts {`
`3160`	`3160`	`}`
`3161`	`3161`
`3162`	`3162`	`function verifyCompilerOptions() {`
`3163`		`- const isNightly = stringContains(version, "-dev");`
	`3163`	`+ const isNightly = stringContains(version, "-dev") \|\| stringContains(version, "-insiders");`
`3164`	`3164`	`if (!isNightly) {`
`3165`	`3165`	`if (getEmitModuleKind(options) === ModuleKind.Node12) {`
`3166`	`3166`	`createOptionValueDiagnostic("module", Diagnostics.Compiler_option_0_of_value_1_is_unstable_Use_nightly_TypeScript_to_silence_this_error_Try_updating_with_npm_install_D_typescript_next, "module", "node12");`