Complex number should now follow the D ABI on x86. They're also treated as first class values now. Big change.

tests/mini/complex1.d

@@ -7,12 +7,8 @@ void main()
     cfloat cf3 = func();
     auto c1 = cf1 + cf2;
     auto c2 = cf2 - cf3;
-    {
     auto c3 = cf1 * cf3;
-    {
     auto c4 = cf2 / cf3;
-    }
-    }
 }
 
 cfloat func()

tests/mini/complex2.d

@@ -4,11 +4,7 @@ void main()
 {
     cdouble c = 3.0 + 0i;
     cdouble d = 2.0 + 0i;
-    {
-        cdouble c1 = c + 3.0;
-        cdouble c2 = c - 3.0i;
-    }
-    {
-        cdouble c1 = c / 2.0;
-    }
+    cdouble c1 = c + 3.0;
+    cdouble c2 = c - 3.0i;
+    cdouble c3 = c / 2.0;
 }

tests/mini/complex3.d

@@ -5,5 +5,5 @@ void main()
     cfloat c1 = 1f + 0i;
     cfloat c2 = 0f + 0i;
     c2 += 1f + 0i;
-    //assert(c1 == c2);
+    assert(c1 == c2);
 }

tests/mini/complex4.d

@@ -0,0 +1,8 @@
+module complex4;
+
+void main()
+{
+    cfloat c = 2f + 3fi;
+    float r = cast(float)c;
+    ifloat i = cast(ifloat)c;
+}