Merge pull request #4001 from 9rnsr/fix13481

Issue 13481 - bug with inferring attributes from built-in properties

src/expression.c

@@ -5290,11 +5290,17 @@ Expression *FuncExp::syntaxCopy()
         fd2 = (*td2->members)[0]->isFuncLiteralDeclaration();
         assert(fd2);
     }
-    else
+    else if (fd->semanticRun == PASSinit)
     {
         td2 = NULL;
         fd2 = (FuncLiteralDeclaration *)fd->syntaxCopy(NULL);
     }
+    else
+    {
+        // Bugzilla 13481: Prevent multiple semantic analysis of lambda body.
+        td2 = NULL;
+        fd2 = fd;
+    }
     return new FuncExp(loc, fd2, td2);
 }
 

test/compilable/compile1.d

@@ -708,3 +708,19 @@ final class C12703
 {
     S12703 s = S12703(1);
 }
+
+/***************************************************/
+// 13481
+
+mixin template Mix13481(void function() callback)
+{
+    static this()
+    {
+        callback();
+    }
+}
+
+void sort13481() { int[] arr; arr.sort; }
+mixin Mix13481!(&sort13481);
+
+mixin Mix13481!({ int[] arr; arr.sort; });