Disallow Infinity, -Infinity and NaN as an enum key name

src/compiler/checker.ts

@@ -44729,7 +44729,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
         }
         else {
             const text = getTextOfPropertyName(member.name);
-            if (isNumericLiteralName(text) && !isInfinityOrNaNString(text)) {
+            if (isNumericLiteralName(text)) {
                 error(member.name, Diagnostics.An_enum_member_cannot_have_a_numeric_name);
             }
         }

tests/baselines/reference/enumWithInfinityProperty.errors.txt

@@ -0,0 +1,10 @@
+enumWithInfinityProperty.ts(2,5): error TS2452: An enum member cannot have a numeric name.
+
+
+==== enumWithInfinityProperty.ts (1 errors) ====
+    enum A {
+        Infinity = 1
+        ~~~~~~~~
+!!! error TS2452: An enum member cannot have a numeric name.
+    }
+

tests/baselines/reference/enumWithNaNProperty.errors.txt

@@ -0,0 +1,10 @@
+enumWithNaNProperty.ts(2,5): error TS2452: An enum member cannot have a numeric name.
+
+
+==== enumWithNaNProperty.ts (1 errors) ====
+    enum A {
+        NaN = 1
+        ~~~
+!!! error TS2452: An enum member cannot have a numeric name.
+    }
+

tests/baselines/reference/enumWithNegativeInfinityProperty.errors.txt

@@ -0,0 +1,10 @@
+enumWithNegativeInfinityProperty.ts(2,5): error TS2452: An enum member cannot have a numeric name.
+
+
+==== enumWithNegativeInfinityProperty.ts (1 errors) ====
+    enum A {
+        "-Infinity" = 1
+        ~~~~~~~~~~~
+!!! error TS2452: An enum member cannot have a numeric name.
+    }
+