Minor improvments of tests for microsoft#6579

Author: Igmat

Diff for: tests/cases/compiler/regexValidatedTypeAssignment.ts

@@ -7,9 +7,9 @@ email = '[email protected]';
 email = '[email protected]';
 gmail = '[email protected]';
 gmail = '[email protected]';
+
 gmail = email;
 email = gmail;
-
 gmail = <Gmail>email;
 if (Gmail.test(email)) {
     gmail = email;
@@ -18,17 +18,23 @@ if (Gmail.test(email)) {
 let someEmail = '[email protected]';
 let someGmail = '[email protected]';
 email = someEmail;
+email = someGmail;
+gmail = someEmail;
 gmail = someGmail;
 email = <Email>someEmail;
 gmail = <Gmail>someGmail;
 if (Email.test(someEmail)) {
     email = someEmail;
+    gmail = someEmail;
 }
 if (Gmail.test(someGmail)) {
+    email = someGmail;
     gmail = someGmail;
 }
 
 let someEmailLiteral: '[email protected]' = '[email protected]';
 let someGmailLiteral: '[email protected]' = '[email protected]';
 email = someEmailLiteral;
+email = someGmailLiteral;
+gmail = someEmailLiteral;
 gmail = someGmailLiteral;

Diff for: tests/cases/compiler/regexValidatedTypeIndex.ts

@@ -31,5 +31,19 @@ collection[<Email>someEmail].usersProperty;
 collection[<Email>someEmail].gmailProperty;
 collection[<Gmail>someGmail].usersProperty;
 collection[<Gmail>someGmail].gmailProperty;
-collection[<Email & Gmail> someGmail].usersProperty;
-collection[<Email & Gmail> someGmail].gmailProperty;
+
+if (Email.test(someEmail)) {
+    collection[someEmail].usersProperty;
+    collection[someEmail].gmailProperty;
+}
+if (Gmail.test(someGmail)) {
+    collection[someGmail].usersProperty;
+    collection[someGmail].gmailProperty;
+}
+
+let someEmailLiteral: 'test@example.com' = '[email protected]';
+let someGmailLiteral: 'test@gmail.com' = '[email protected]';
+collection[someEmailLiteral].usersProperty;
+collection[someEmailLiteral].gmailProperty;
+collection[someGmailLiteral].usersProperty;
+collection[someGmailLiteral].gmailProperty;