generate ts5.9 baselines

Author: rossrobino

baselines/ts5.9/audioworklet.generated.d.ts

@@ -1408,7 +1408,7 @@ interface URLSearchParams {
 
 declare var URLSearchParams: {
     prototype: URLSearchParams;
-    new(init?: string[][] | Record<string, string> | string | URLSearchParams): URLSearchParams;
+    new(init?: string | Iterable<[string, string]> | Record<string, string>): URLSearchParams;
 };
 
 /**

baselines/ts5.9/dom.generated.d.ts

@@ -37675,7 +37675,7 @@ interface URLSearchParams {
 
 declare var URLSearchParams: {
     prototype: URLSearchParams;
-    new(init?: string[][] | Record<string, string> | string | URLSearchParams): URLSearchParams;
+    new(init?: string | Iterable<[string, string]> | Record<string, string>): URLSearchParams;
 };
 
 /**

baselines/ts5.9/serviceworker.generated.d.ts

@@ -9574,7 +9574,7 @@ interface URLSearchParams {
 
 declare var URLSearchParams: {
     prototype: URLSearchParams;
-    new(init?: string[][] | Record<string, string> | string | URLSearchParams): URLSearchParams;
+    new(init?: string | Iterable<[string, string]> | Record<string, string>): URLSearchParams;
 };
 
 /**

baselines/ts5.9/sharedworker.generated.d.ts

@@ -9117,7 +9117,7 @@ interface URLSearchParams {
 
 declare var URLSearchParams: {
     prototype: URLSearchParams;
-    new(init?: string[][] | Record<string, string> | string | URLSearchParams): URLSearchParams;
+    new(init?: string | Iterable<[string, string]> | Record<string, string>): URLSearchParams;
 };
 
 /**

baselines/ts5.9/webworker.generated.d.ts

@@ -10744,7 +10744,7 @@ interface URLSearchParams {
 
 declare var URLSearchParams: {
     prototype: URLSearchParams;
-    new(init?: string[][] | Record<string, string> | string | URLSearchParams): URLSearchParams;
+    new(init?: string | Iterable<[string, string]> | Record<string, string>): URLSearchParams;
 };
 
 /**