[CodeCompletion] Don’t pass LeaveClosureBodiesUnchecked for solver-based code completion

test/IDE/complete_with_trailing_closure.swift

@@ -16,10 +16,20 @@ func sink(receiveValue: (MyArray) -> Void) {
 func foo() {
   sink { items in
     let a = items.#^COMPLETE_WITHOUT_SPACE?check=CHECK^#map{ $0.content }
+  }
+  sink { items in
     let b = items.#^COMPLETE_WITH_SPACE?check=CHECK^# map{ $0.content }
+  }
+  sink { items in
     let c = items.#^COMPLETE_WITH_SPACE_AND_PARENS?check=CHECK^# map({ $0.content })
+  }
+  sink { items in
     let d = items.#^COMPLETE_WITHOUT_SPACE_BUT_PARENS?check=CHECK^#map({ $0.content })
+  }
+  sink { items in
     let e = items.#^COMPLETE_WITHOUT_MAP?check=CHECK^# { $0.content }
+  }
+  sink { items in
     let f = items.#^COMPLETE_WITHOUT_MAP_BUT_PARENS?check=CHECK^# ({ $0.content })
   }
 }