Added std::collections::enummap.

test/unit/stdlib/collections/enummap.c3

@@ -0,0 +1,29 @@
+module enummap_test @test;
+import std::collections::enummap;
+
+enum FooEnum
+{
+    ONE,
+    TWO,
+    THREE,
+}
+
+typedef FooEnumMap = EnumMap<FooEnum, uint>;
+
+fn void! enums()
+{
+    FooEnumMap nm;
+    nm.set(ONE, 1);
+    nm.set(TWO, 2);
+    nm.set(THREE, 3);
+
+    assert(nm[FooEnum.ONE] == 1);
+    assert(nm[FooEnum.TWO] == 2);
+    assert(nm[FooEnum.THREE] == 3);
+
+    nm.init(0);
+
+    assert(nm[FooEnum.ONE] == 0);
+    assert(nm[FooEnum.TWO] == 0);
+    assert(nm[FooEnum.THREE] == 0);
+}