Add test case for intersection/constraint bug fixed in 4.9 (#54972)

tests/cases/compiler/intersectionSatisfiesConstraint.ts

@@ -0,0 +1,19 @@
+// @strict: true
+// @lib: esnext
+
+interface FirstInterface {
+    commonProperty: number
+}
+
+interface SecondInterface {
+    commonProperty: number
+}
+
+const myFirstFunction = <T extends FirstInterface | SecondInterface>(param1: T) => {
+    const newParam: T & { otherProperty: number } = Object.assign(param1, { otherProperty: 3 })
+    mySecondFunction(newParam)
+}
+
+const mySecondFunction = <T extends { commonProperty: number, otherProperty: number }>(newParam: T) => {
+    return newParam
+}