add test case

Author: Andarist

tests/baselines/reference/inferenceFromGenericClassNoCrash1.errors.txt

@@ -0,0 +1,14 @@
+inferenceFromGenericClassNoCrash1.ts(5,3): error TS2564: Property 't' has no initializer and is not definitely assigned in the constructor.
+
+
+==== inferenceFromGenericClassNoCrash1.ts (1 errors) ====
+    // https://github.com/microsoft/TypeScript/issues/61633#issuecomment-2841778576
+    
+    function RenderFlagsMixin<T extends new (...args: any[]) => object>(Base?: T) {}
+    class Container<T> {
+      t: T;
+      ~
+!!! error TS2564: Property 't' has no initializer and is not definitely assigned in the constructor.
+    }
+    RenderFlagsMixin(Container);
+    

tests/baselines/reference/inferenceFromGenericClassNoCrash1.symbols

@@ -0,0 +1,24 @@
+//// [tests/cases/compiler/inferenceFromGenericClassNoCrash1.ts] ////
+
+=== inferenceFromGenericClassNoCrash1.ts ===
+// https://github.com/microsoft/TypeScript/issues/61633#issuecomment-2841778576
+
+function RenderFlagsMixin<T extends new (...args: any[]) => object>(Base?: T) {}
+>RenderFlagsMixin : Symbol(RenderFlagsMixin, Decl(inferenceFromGenericClassNoCrash1.ts, 0, 0))
+>T : Symbol(T, Decl(inferenceFromGenericClassNoCrash1.ts, 2, 26))
+>args : Symbol(args, Decl(inferenceFromGenericClassNoCrash1.ts, 2, 41))
+>Base : Symbol(Base, Decl(inferenceFromGenericClassNoCrash1.ts, 2, 68))
+>T : Symbol(T, Decl(inferenceFromGenericClassNoCrash1.ts, 2, 26))
+
+class Container<T> {
+>Container : Symbol(Container, Decl(inferenceFromGenericClassNoCrash1.ts, 2, 80))
+>T : Symbol(T, Decl(inferenceFromGenericClassNoCrash1.ts, 3, 16))
+
+  t: T;
+>t : Symbol(Container.t, Decl(inferenceFromGenericClassNoCrash1.ts, 3, 20))
+>T : Symbol(T, Decl(inferenceFromGenericClassNoCrash1.ts, 3, 16))
+}
+RenderFlagsMixin(Container);
+>RenderFlagsMixin : Symbol(RenderFlagsMixin, Decl(inferenceFromGenericClassNoCrash1.ts, 0, 0))
+>Container : Symbol(Container, Decl(inferenceFromGenericClassNoCrash1.ts, 2, 80))
+

tests/baselines/reference/inferenceFromGenericClassNoCrash1.types

@@ -0,0 +1,29 @@
+//// [tests/cases/compiler/inferenceFromGenericClassNoCrash1.ts] ////
+
+=== inferenceFromGenericClassNoCrash1.ts ===
+// https://github.com/microsoft/TypeScript/issues/61633#issuecomment-2841778576
+
+function RenderFlagsMixin<T extends new (...args: any[]) => object>(Base?: T) {}
+>RenderFlagsMixin : <T extends new (...args: any[]) => object>(Base?: T) => void
+>                 : ^ ^^^^^^^^^                              ^^    ^^^ ^^^^^^^^^
+>args : any[]
+>     : ^^^^^
+>Base : T | undefined
+>     : ^^^^^^^^^^^^^
+
+class Container<T> {
+>Container : Container<T>
+>          : ^^^^^^^^^^^^
+
+  t: T;
+>t : T
+>  : ^
+}
+RenderFlagsMixin(Container);
+>RenderFlagsMixin(Container) : void
+>                            : ^^^^
+>RenderFlagsMixin : <T extends new (...args: any[]) => object>(Base?: T) => void
+>                 : ^ ^^^^^^^^^                              ^^    ^^^ ^^^^^^^^^
+>Container : typeof Container
+>          : ^^^^^^^^^^^^^^^^
+

tests/cases/compiler/inferenceFromGenericClassNoCrash1.ts

@@ -0,0 +1,10 @@
+// @strict: true
+// @noEmit: true
+
+// https://github.com/microsoft/TypeScript/issues/61633#issuecomment-2841778576
+
+function RenderFlagsMixin<T extends new (...args: any[]) => object>(Base?: T) {}
+class Container<T> {
+  t: T;
+}
+RenderFlagsMixin(Container);