[Test] Update type_checker_crashers_fixed/rdar50869732.swift with missing

conformance diagnostics.

Author: hborla

validation-test/Sema/type_checker_crashers_fixed/rdar50869732.swift

@@ -10,7 +10,7 @@ struct Generic<T> {
 
 @_functionBuilder
 struct Builder {
-  static func buildBlock<C0, C1>(_ c0: C0, _ c1: C1)
+  static func buildBlock<C0, C1>(_ c0: C0, _ c1: C1) // expected-note {{where 'C0' = 'Empty'}} expected-note {{where 'C1' = 'Test<Empty>'}}
            -> Generic<(C0, C1)> where C0 : P, C1 : P {
     return Generic((c0, c1))
   }
@@ -24,11 +24,13 @@ struct Empty {
   init() {}
 }
 
-struct Test<T> where T : P {
+struct Test<T> where T : P { // expected-note {{where 'T' = 'Empty'}}
   init(@Builder _: () -> T) {}
 }
 
 let x = G {
+  // expected-error@-1 {{static method 'buildBlock' requires that 'Empty' conform to 'P'}}
+  // expected-error@-2 {{static method 'buildBlock' requires that 'Test<Empty>' conform to 'P'}}
   Empty()
-  Test { <#code#> } // expected-error {{editor placeholder in source file}}
+  Test { Empty() } // expected-error {{generic struct 'Test' requires that 'Empty' conform to 'P'}}
 }