[CSDiagnostics] Removes lazy attributes when applying computed property fix-it

Author: theblixguy

lib/Sema/CSDiagnostics.cpp

@@ -1474,6 +1474,10 @@ void ContextualFailure::tryComputedPropertyFixIts(Expr *expr) const {
         if (VD->isLet()) {
           diag.fixItReplace(PBD->getStartLoc(), getTokenText(tok::kw_var));
         }
+
+        if (auto lazyAttr = VD->getAttrs().getAttribute<LazyAttr>()) {
+          diag.fixItRemove(lazyAttr->getRange());
+        }
       }
     }
   }

test/decl/var/properties.swift

@@ -1306,3 +1306,8 @@ class SR_9267_C {
 class SR_9267_C2 {
   let SR_9267_prop_3: Int = { return 0 } // expected-error {{function produces expected type 'Int'; did you mean to call it with '()'?}} // expected-note {{Remove '=' to make 'SR_9267_prop_3' a computed property}}{{3-6=var}}{{27-29=}}
 }
+
+class LazyPropInClass {
+  lazy var foo: Int = { return 0 } // expected-error {{function produces expected type 'Int'; did you mean to call it with '()'?}}
+  // expected-note@-1 {{Remove '=' to make 'foo' a computed property}}{{21-23=}}{{3-8=}}
+}