Add test case

The test passes in 1.8 and fails in master.

tests/cases/compiler/inferParameterWithMethodCallInitializer.ts

@@ -0,0 +1,12 @@
+// @noImplicitAny: true
+function getNumber(): number {
+    return 1;
+}
+class Example {
+    getNumber(): number {
+        return 1;
+    }
+    doSomething(a = this.getNumber()): typeof a {
+        return a;
+    }
+}